Document:

<PAGE>

                                                                   Exhibit 10.10

                             STANDARD OFFICE LEASE

                                BY AND BETWEEN

                       ARDEN REALTY LIMITED PARTNERSHIP,
                        a Maryland limited partnership,

                                 AS LANDLORD,

                                      AND

                            DESKTALK SYSTEMS, INC.,
                           a California corporation,

                                   AS TENANT

                                   SUITE 900

                              PACIFIC GATEWAY II
<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                    Pages
                                                                                                                    -----
<S>                                                                                                                 <C>
ARTICLE 1 BASIC LEASE PROVISIONS..................................................................................      1

ARTICLE 2 TERM/PREMISES...........................................................................................      2

ARTICLE 3 RENTAL..................................................................................................      3
    (a)    Basic Rental...........................................................................................      3
    (b)    Increase in Direct Costs...............................................................................      3
    (c)    Definitions............................................................................................      4
    (d)    Determination of Payment...............................................................................      8

ARTICLE 4 SECURITY DEPOSIT.......................................................................................      10

ARTICLE 5 HOLDING OVER...........................................................................................      11

ARTICLE 6 PERSONAL PROPERTY TAXES................................................................................      11

ARTICLE 7 USE....................................................................................................      12

ARTICLE 8 CONDITION OF PREMISES..................................................................................      12

ARTICLE 9 REPAIRS AND ALTERATIONS................................................................................      13

ARTICLE 10 LIENS.................................................................................................      16

ARTICLE 11 PROJECT SERVICES......................................................................................      17

ARTICLE 12 RIGHTS OF LANDLORD....................................................................................      19

ARTICLE 13 INDEMNITY; EXEMPTION OF LANDLORD FROM LIABILITY.......................................................      20
    (a)    Indemnity.............................................................................................      20
    (b)    Exemption of Landlord from Liability..................................................................      20

ARTICLE 14 INSURANCE.............................................................................................      21
    (a)    Tenant's Insurance....................................................................................      21
    (b)    Form of Policies......................................................................................      21
    (c)    Landlord's Insurance..................................................................................      22
    (d)    Waiver of Subrogation.................................................................................      22
    (e)    Compliance with Law...................................................................................      22

ARTICLE 15 ASSIGNMENT AND SUBLETTING.............................................................................      23

ARTICLE 16 DAMAGE OR DESTRUCTION.................................................................................      25

ARTICLE 17 SUBORDINATION.........................................................................................      27
</TABLE>

                                       i
<PAGE>

<TABLE>
<S>                                                                                                                   <C>
ARTICLE 18 EMINENT DOMAIN........................................................................................     28

ARTICLE 19 DEFAULT...............................................................................................     28

ARTICLE 20 REMEDIES..............................................................................................     29

ARTICLE 21 TRANSFER OF LANDLORD'S INTEREST.......................................................................     31

ARTICLE 22 BROKER................................................................................................     32

ARTICLE 23 PARKING...............................................................................................     32

ARTICLE 24 WAIVER / PERFORMANCE UNDER PROTEST....................................................................     33
     (a)    Waiver...............................................................................................     33
     (b)    Right to Perform Under Protest.......................................................................     33
     (c)    Required Notice......................................................................................     33

ARTICLE 25 ESTOPPEL CERTIFICATE..................................................................................     34

ARTICLE 26 LIABILITY OF LANDLORD.................................................................................     34

ARTICLE 27 INABILITY TO PERFORM..................................................................................     35

ARTICLE 28 HAZARDOUS WASTE.......................................................................................     35

ARTICLE 29 SURRENDER OF PREMISES; REMOVAL OF PROPERTY............................................................     36

ARTICLE 30 MISCELLANEOUS.........................................................................................     37
     (a)    Severability; Entire Agreement.......................................................................     37
     (b)    Attorneys' Fees; Waiver of Jury Trial................................................................     38
     (c)    Time of Essence......................................................................................     38
     (d)    Headings; Joint and Several..........................................................................     38
     (e)    Reserved Area........................................................................................     38
     (f)    NO OPTION............................................................................................     39
     (g)    Use of Project Name; Improvements....................................................................     39
     (h)    Rules and Regulations................................................................................     39
     (i)    Quiet Possession.....................................................................................     39
     (j)    Rent.................................................................................................     39
     (k)    Successors and Assigns...............................................................................     39
     (l)    Notices..............................................................................................     39
     (m)    Persistent Delinquencies.............................................................................     40
     (n)    Right of Landlord to Perform.........................................................................     40
     (o)    Access, Changes in Project, Facilities, Name.........................................................     40
     (p)    Signing Authority....................................................................................     41
     (q)    Identification of Tenant.............................................................................     41
     (r)    Intentionally Deleted................................................................................     42
     (s)    Survival of Obligations..............................................................................     42
     (t)    Intentionally Deleted................................................................................     42
</TABLE>

                                      ii
<PAGE>

<TABLE>
<S>                                                                                                                   <C>
     (u)    Governing Law........................................................................................     42
     (v)    Use of Risers and Conduits...........................................................................     42
     (w)    Exhibits and Addendum................................................................................     43
     (x)    Reasonable Consent...................................................................................     43

ARTICLE 31 OPTIONS TO EXTEND.....................................................................................     43
     (a)    Option Rights........................................................................................     43
     (b)    Option Rent..........................................................................................     43
     (c)    Exercise of Options..................................................................................     44
     (d)    Determination of Market Rent.........................................................................     44

ARTICLE 32 RIGHT OF FIRST OFFER..................................................................................     45

ARTICLE 33 SIGNAGE/DIRECTORY.....................................................................................     47

ARTICLE 34 TERMINATION OPTION....................................................................................     47

ARTICLE 35 COMMUNICATION EQUIPMENT...............................................................................     48
</TABLE>

     Exhibit "A"   Premises and Individual Suites of First Offer Space

     Exhibit "B"   Rules and Regulations

     Exhibit "C"   Notice of Lease Term Dates and Tenant's Proportionate Share

     Exhibit "D"   Tenant Work Letter

     Exhibit "E"   Form of Resolutions

                                      iii
<PAGE>

                            INDEX OF DEFINED TERMS
                            ----------------------

<TABLE>
<CAPTION>
DEFINED TERMS                                                                                  PAGE
<S>                                                                                            <C>
Abatement Event................................................................................19
Abatement Notice...............................................................................19
ADA.............................................................................................6
Additional Package Units.......................................................................16
Additional Rent.................................................................................3
Affiliate......................................................................................25
Affiliated Assignee............................................................................25
Alterations....................................................................................15
Approved Working Drawings...............................................................Exhibit D
Architect...............................................................................Exhibit D
Base Year.......................................................................................2
Basic Rental (Full Service Gross)...............................................................2
Brokers.........................................................................................2
Commencement Date...............................................................................1
Communication Equipment........................................................................48
Communication Equipment Notice.................................................................48
Contractor..............................................................................Exhibit D
Control........................................................................................25
Damage Repair Estimate.........................................................................26
Direct Costs....................................................................................4
Economic Terms.................................................................................45
Effective Date..........................................................................Exhibit D
Eligibility Period.............................................................................19
Emergency Situation............................................................................14
Estimate........................................................................................8
Estimate Statement..............................................................................8
Estimated Excess................................................................................8
Event of Default...............................................................................28
Excess..........................................................................................8
Expiration Date.................................................................................1
First Month's Rent..............................................................................2
First Offer Notice.............................................................................45
First Offer Space..............................................................................45
Force Majeure..................................................................................35
Force Majeure Delays....................................................................Exhibit D
Hazardous Material.............................................................................36
HVAC...........................................................................................17
Interest Notice................................................................................44
Interest Rate..................................................................................31
Landlord........................................................................................1
Laws...........................................................................................36
Lease...........................................................................................1
Lease Year......................................................................................2
</TABLE>

                                      iv
<PAGE>

<TABLE>
<S>                                                                                            <C>
Long Lead Time Items....................................................................Exhibit D
Market Rent....................................................................................43
Non-Standard Improvements...............................................................Exhibit D
Operating Costs.................................................................................5
Option Rent....................................................................................43
Option Rent Notice.............................................................................44
Option Term....................................................................................43
Options........................................................................................43
Original Tenant................................................................................43
Outside Agreement Date.........................................................................44
Outside Date............................................................................Exhibit D
Outside Date Termination Notice.........................................................Exhibit D
Over-Allowance Amount...................................................................Exhibit D
Package Units..................................................................................16
Parking Passes..................................................................................2
Partnership Tenant.............................................................................41
Permit/Material Force Majeure Delays....................................................Exhibit D
Permitted Use...................................................................................2
Plans...................................................................................Exhibit D
Premises........................................................................................1
Project.........................................................................................1
Real Property...................................................................................4
Reassessment....................................................................................4
Rent Commencement Date..........................................................................1
Representative.................................................................................34
Review Period...................................................................................9
Second Chance Notice...........................................................................46
Security Deposit................................................................................2
Square Footage..................................................................................1
Settlement......................................................................................7
Substantial Completion..........................................................................1
Superior Leases................................................................................45
Tax Costs.......................................................................................4
Tax Increase....................................................................................4
Tenant..........................................................................................1
Tenant's Acceptance............................................................................44
Tenant's Signage...............................................................................47
Tenant's Delays.........................................................................Exhibit D
Tenant's Improvements..........................................................................12
Tenant's Proportionate Share....................................................................2
Term............................................................................................1
Termination Date...............................................................................48
Termination Fee................................................................................48
Termination Notice.............................................................................48
Termination Option.............................................................................48
Transfer.......................................................................................24
</TABLE>

                                       v
<PAGE>

<TABLE>
<S>                                                                                            <C>
Transfer Premium...............................................................................24
Transferee.....................................................................................24
Utility Lines..................................................................................13
Working Drawings........................................................................Exhibit D
</TABLE>

                                      vi
<PAGE>

                             STANDARD OFFICE LEASE
                             ---------------------

     This Standard Office Lease ("Lease") is made and entered into as of this
27th day of July, 1999, by and between ARDEN REALTY LIMITED PARTNERSHIP, a
Maryland limited partnership ("Landlord"), and DESKTALK SYSTEMS, INC., a
California corporation ("Tenant").

     Landlord hereby leases to Tenant and Tenant hereby leases from Landlord the
premises described as Suite No. 900, as designated on the plan attached hereto
and incorporated herein as Exhibit "A" ("Premises"), of the project ("Project")
now known as Pacific Gateway 11 whose address is 19191 Vermont Avenue, Torrance,
California for the Term and upon the terms and conditions hereinafter set forth,
and Landlord and Tenant hereby agree as follows:

                                   ARTICLE 1

                            BASIC LEASE PROVISIONS
                            ----------------------

A.   Term:                                 Six (6) years from the Rent
                                           Commencement Date.

     Commencement Date:                    The date of full execution and
                                           delivery of this Lease.

     Rent Commencement Date:               The earlier of (i) the date Tenant
                                           first commences to conduct business
                                           in the Premises, or (ii) the date
                                           which is ten (10) business days after
                                           Tenant receives written notice of
                                           "Substantial Completion" of
                                           Improvements in the Premises. The
                                           term "Substantial Completion" shall
                                           be defined as the completion of the
                                           Improvements in the Premises (other
                                           than minor "punch list" items which
                                           shall be completed by Landlord as
                                           provided in Section 6.5 of the Tenant
                                           Work Letter) as evidenced by a notice
                                           of completion, inspectors' sign off
                                           or similar instrument or action by
                                           the appropriate-governmental
                                           authority. The anticipated Rent
                                           Commencement Date is September 15,
                                           1999.

     Expiration Date:                      The date immediately preceding the
                                           sixth (6th) anniversary of the Rent
                                           Commencement Date; provided, however,
                                           that if the Rent Commencement Date is
                                           a date other than the first day of a
                                           month, the Expiration Date shall be
                                           the last day of the month which is
                                           seventy-two (72) months after the
                                           month in which the Rent Commencement
                                           Date falls, unless extended or
                                           earlier terminated pursuant to this
                                           Lease.

B.   Square Footage:                       23,199 rentable (21,936 usable)
                                           square feet

                                       1
<PAGE>

C.   Basic Rental (Full Service Gross):

------------------------------------------------------------------------------
                        Annual         Monthly         Monthly Basic Rental
        Lease Month   Basic Rental    Basic Rental    Per Rentable Square Foot
        -----------   ------------    ------------    ------------------------

------------------------------------------------------------------------------
           1-24       $459,340.20      $38,278.35              $1.65
------------------------------------------------------------------------------
          25-72       $487,179.00      $40,598.25              $1.75
------------------------------------------------------------------------------

D.   Base Year:                       1999

E.   Tenant's Proportionate Share:    10.37% (23,199 + 223,731 = 10.37%)

F.   Security Deposit:                A security deposit of $38,278.35 shall be
                                      due and payable by Tenant to Landlord upon
                                      Tenant's execution of this Lease.

G.   Permitted Use:                   General office use

H.   Brokers:                         CB Richard Ellis, Inc.; The Everest Group,
                                      Inc.

I.   Parking Passes:                  Tenant shall have the use of three point
                                      five (3.5) parking passes for each 1,000
                                      rentable square feet contained in the
                                      Premises, which equals eighty-one (81)
                                      passes, at the rate provided in Article 23
                                      hereof.

J.   First Month's Rent:              The first full month's rent of $38,278.35
                                      shall be due and payable by Tenant to
                                      Landlord upon Tenant's execution of this
                                      Lease.

                                   ARTICLE 2

                                 TERM/PREMISES
                                 -------------

     The Term of this Lease shall commence on the Commencement Date as set forth
in Article 1.A. of the Basic Lease Provisions and shall end on the Expiration
Date set forth in Article 1.A. of the Basic Lease Provisions.  Notwithstanding
the fact that the Commencement Date has occurred, Tenant shall not have the
right to occupy the Premises, nor shall Tenant be responsible for the payment of
Rent, until the Rent Commencement Date set forth above.  For purposes of this
Lease, the term "Lease Year" shall mean each consecutive twelve (12) month
period during the Lease Term, with the first Lease Year commencing on the Rent
Commencement Date; however, (a) if the Rent Commencement Date falls on a day
other than the first day of a calendar month, the first Lease Year shall end on
the last day of the eleventh (11th) month after the Rent Commencement Date and
the second (2nd) and each succeeding Lease Year shall commence on the first day
of the next calendar month, and (b) the last Lease

                                       2
<PAGE>

Year shall end on the Expiration Date. If Landlord is unable to deliver
possession of the Premises to Tenant on or before the anticipated Rent
Commencement Date, except as provided in Section 6.6 of the Tenant Work Letter,
Landlord shall not be subject to any liability for its failure to do so, and
such failure shall not affect the validity of this Lease nor the obligations of
Tenant hereunder. Landlord and Tenant hereby stipulate that the initial Premises
contains the number of square feet specified in Article 1.B. of the Basic Lease
Provisions and that Tenant's Proportionate Share (for the initial Premises) is
as specified in Article I.E. of the Basic Lease Provisions. Landlord may deliver
to Tenant a Commencement Letter in a form substantially similar to that attached
hereto as Exhibit "C", which Tenant shall execute and return to Landlord within
five (5) business days of receipt thereof. Failure of Tenant to timely execute
and deliver the Commencement Letter shall constitute acknowledgment by Tenant
that the statements included in such notice are true and correct, without
exception.

                                   ARTICLE 3

                                    RENTAL
                                    ------

     (a)  Basic Rental.
          ------------

Tenant agrees to pay to Landlord during the Term hereof, at Landlord's office or
to such other person or at such other place as directed from time to time by
written notice to Tenant from Landlord, the initial monthly and annual sums as
set forth in Article 1.C of the Basic Lease Provisions, payable in advance on
the first day of each calendar month, without demand, setoff or deduction, and
in the event this Lease commences or the date of expiration of this Lease occurs
other than on the first day or last day of a calendar month, the rent for such
month shall be prorated.  Notwithstanding the foregoing, the first full months
rent slid] I be paid to Landlord in accordance with Article 1.J. of the Basic
Lease Provisions.

     (b)  Increase in Direct Costs. The term "Base Year" means the calendar year
          ------------------------
set forth Article 1.D. of the Basic Lease Provisions. If, in any calendar year
during the Term of this Lease, the "Direct Costs" (as hereinafter defined) paid
or incurred by Landlord shall be higher than the Direct Costs for the Base Year,
Tenant shall pay an additional sum for such and each subsequent calendar year
equal to the product of the amount set forth in Article 1.E. of the Basic Lease
Provisions multiplied by such increased amount of "Direct Costs." In the event
that the Premises is expanded, then Tenant's Proportionate Share shall be
appropriately adjusted, and as to the calendar year in which such change occurs,
Tenant's Proportionate Share for such year shall be determined on the basis of
the number of days during that particular calendar year that such Tenant's
Proportionate Share was in effect. Notwithstanding anything to the contrary
contained herein, Tenant's Proportionate Share of any increases in Direct Costs
shall not increase in the event of any expansion or redevelopment of the
Project. In the event this Lease shall terminate on any date other than the last
day of a calendar year, the additional sum payable hereunder by Tenant during
the calendar year in which this Lease terminates shall be prorated on the basis
of the relationship which the number of days which have elapsed from the
commencement or said calendar year to and including said date on which this
Lease terminates bears to three hundred sixty-five (365). Any and all amounts
due and payable by Tenant pursuant to Article 3(b), (c) and (d) hereof shall be
deemed "Additional Rent" and Landlord

                                       3
<PAGE>

shall be entitled to exercise the same rights and remedies upon default in these
payments as Landlord is entitled to exercise with respect to defaults in monthly
Basic Rental payments.

     (c)  Definitions. As used herein the term "Direct Costs" shall mean the
          -----------
stun of the following:

          (i)  "Tax Costs", which shall mean any and all real estate taxes and
other similar charges on real property or improvements, assessments, water and
sewer charges, and all other charges assessed, reassessed or levied upon the
Project and appurtenances thereto and the parking or other facilities thereof,
or the real property thereunder (collectively the "Real Property") or
attributable thereto or on the rents, issues, profits or income received or
derived therefrom which are assessed, reassessed or levied by the United States,
the State of California or any local governmental authority or agency or any
political subdivision thereof, and shall include Landlord's reasonable legal
fees, costs and disbursements incurred in connection with proceedings for
reduction of Tax Costs or any part thereof, provided, however, if at any time
after the date of this Lease the methods of taxation now prevailing shall be
altered so that in lieu of or as a supplement to or a substitute for the whole
or any part of any Tax Costs, there shall be assessed, reassessed or levied (a)
a tax, assessment, reassessment, levy, imposition or charge wholly or partially
as a net income, capital or franchise levy or otherwise on the rents, issues,
profits or income derived therefrom, or (b) a tax, assessment, reassessment,
levy (including but not limited to any municipal, state or federal levy),
imposition or charge measured by or based in whole or in part upon the Real
Property and imposed upon Landlord, or (c) a license fee measured by the rent
payable under this Lease, then all such taxes, assessments, reassessments or
levies or the part thereof so measured or based, shall be deemed to be included
in the term "Direct Costs." Notwithstanding anything to the contrary contained
in this Section 3(c)(i), there shall be excluded from Tax Costs (i) all excess
profits taxes, franchise taxes, gift taxes, capital stock taxes, inheritance and
succession taxes, estate taxes, federal and state income taxes, and other taxes
to the extent applicable to Landlord's general or net income (as opposed to
rents or receipts attributable to operations at the Project), (ii) any items
included as Operating Costs, and (iii) any items paid by Tenant under Article 6
of this Lease. In no event shall Tax Costs included in Direct Costs for any year
subsequent to the Base Year be less than the amount of Tax Costs included in
Direct Costs for the Base Year. In addition, when calculating Tax Costs for the
Base Year, special assessments shall only be deemed included in Tax Costs for
the Base Year to the extent that such special assessments are included in Tax
Costs for the applicable subsequent calendar year during the Term.
Notwithstanding anything to the contrary contained in this Lease, in the event
that, at any time during the first three (3) Lease Years, any sale, refinancing,
or change in ownership of the Real Property is consummated, and as a result
thereof, and to the extent that in connection therewith, the Real Property is
reassessed (the "Reassessment") for real estate tax purposes by the appropriate
governmental authority pursuant to the terms of Proposition 13, then the
following provisions shall apply to such Reassessment of the Real Property.

     For purposes of this Section 3(c)(i), the term "Tax Increase" shall mean
that portion of the Tax Costs, as calculated immediately following the
Reassessment, which is attributable solely to the Reassessment.  Accordingly,
the term Tax Increase shall not include any portion of the Tax Costs, as
calculated immediately following the Reassessment, which (i) is attributable to
the initial assessment of the value of the Real Property, the Base, Shell and
Core of the Project or

                                       4
<PAGE>

the tenant improvements located in the Project, (ii) is attributable to
assessments which were pending immediately prior to the Reassessment which
assessments were conducted during, and included in, such Reassessment, or which
assessments were otherwise rendered unnecessary following the Reassessment, or
(iii) is attributable to the annual inflationary increase of real estate taxes
permitted to be assessed annually under Proposition 13. During the first three
(3) years of the initial Lease Term, any Tax Increase shall be excluded from Tax
Costs. After the first three (3) years of the initial Lease Term, any Tax
Increase shall be included in Tax Costs.

     (ii) "Operating Costs", which shall mean all reasonable costs and expenses
incurred by Landlord in connection with the maintenance, operation, replacement,
ownership and repair of the Project, the equipment, the intrabuilding network
cable, adjacent walks, malls and landscaped and common areas and the parking
structure, areas and facilities of the Project, including, but not limited to,
salaries, wages, medical, surgical and general welfare benefits and pension
payments, payroll taxes, fringe benefits, employment taxes, workers'
compensation, uniforms and dry cleaning thereof for all persons who perform
duties connected with the operation, maintenance and repair of the Project, its
equipment, the intrabuilding network cable and the adjacent walks and landscaped
areas, including janitorial, gardening, security, parking, operating engineer,
elevator, painting, plumbing, electrical, carpentry, heating, ventilation, air
conditioning, window washing, hired services, a reasonable allowance for
depreciation of the cost of acquiring or the rental expense of personal property
used in the maintenance, operation and repair of the Project, accountant's fees
incurred in the preparation of rent adjustment statements, legal fees, real
estate tax consulting fees, personal property taxes on property used in the
maintenance and operation of the Project, fees, costs, expenses or dues payable
pursuant to the terms of any covenants, conditions or restrictions pertaining to
the Project, capital expenditures incurred to effect economics of operation of,
or stability of services to, the Project and capital expenditures required by
government regulations, laws, or ordinances including, but not limited to the
Americans with Disabilities Act; costs incurred (capital or otherwise) on a
regular recurring basis every three (3) or more years for certain maintenance
projects (e.g., parking lot slurry coat or replacement of lobby and elevator cab
carpeting); the cost of all charges for electricity, gas, water and other
utilities furnished to the Project, including any taxes thereon; the cost of all
charges for fire and extended coverage, liability and all other insurance for
the Project carried by Landlord; the cost of all building and cleaning supplies
and materials; the cost of all charges for cleaning, maintenance and service
contracts and other services with independent contractors and administration
fees; a property management fee (which fee may be imputed if Landlord has
internalized management or otherwise acts as its own property manager) and
license, permit and inspection fees relating to the Project. Landlord shall use
commercially reasonable efforts to obtain competitive pricing for items included
in Operating Costs. In the event, during any calendar year, the Project is less
than ninety-five percent (95%) occupied at all times, Operating Costs shall be
adjusted to reflect the Operating Costs of the Project as though ninety-five
percent (95%) were occupied at all times, and the increase or decrease in the
sums owed hereunder shall be based upon such Operating Costs as so adjusted. In
no event shall costs for any item of utilities included in Direct Costs for any
year subsequent to the Base Year be less than the amount included in Direct
Costs for the Base Year for such utility item. Notwithstanding anything to the
contrary set forth in this Article 3, unless Operating Costs for the applicable
subsequent year include the following items, when calculating Operating Costs
for the Base Year, Operating Costs shall exclude (a) market-wide labor-rate
increases due to extraordinary circumstances including, but not limited to,
boycotts and strikes, (b) utility rate

                                       5
<PAGE>

increases due to extraordinary circumstances including, but not limited to,
conservation surcharges, boycotts, embargoes or other shortages, and (c)
amortization of any capital items including, but not limited to, capital
improvements, capital repairs and capital replacements (including such amortized
costs where the actual improvement, repair or replacement was made in prior
years).

     Notwithstanding anything above to the contrary, Operating Costs shall not
include (1) the cost of providing any service directly to and paid directly by
any tenant (outside of such tenant's Direct Cost payments); (2) the cost of any
items for which Landlord is reimbursed by insurance proceeds, condemnation
awards, a tenant of the Project, or otherwise to the extent so reimbursed; (3)
any real estate brokerage commissions or other costs incurred in procuring
tenants, or any fee in lieu of commission; (4) depreciation, amortization of
principal and interest on mortgages or ground lease payments (if any); (5) costs
of items considered capital repairs, replacements, improvements and equipment
under generally accepted accounting principles' consistently applied except as
expressly included in Operating Costs pursuant to the definition above; (6)
costs incurred by Landlord due to the violation by Landlord or any tenant of the
terms and conditions of any lease of space in the Project or any law, code,
regulation, ordinance or the like; (7) Landlord's general corporate overhead and
general and administrative expenses; (8) any compensation paid to clerks,
attendants or other persons in commercial concessions operated by Landlord
(other than in the parking facility for the Project during any Option Term); (9)
costs incurred in connection with upgrading the Project to comply with
disability, life, seismic, fire and safety codes, ordinances, statutes, or other
laws in effect prior to the Rent Commencement Date, including, without
limitation, the Americans with Disabilities Act ("ADA"), including penalties or
damages incurred due to such non-compliance; (10) bad debt expenses and
interest, principal, points and fees on debts (except in connection with the
financing of items which may be included in Operating Costs so long as the cost
of any such financing is at a commercially reasonable rate) or amortization on
any ground lease, mortgage or mortgages or any other debt instrument encumbering
the Project (including the land on which the Project is situated); (11)
marketing costs, including leasing commissions, attorneys' fees in connection
with the negotiation and preparation of letters, deal memos, letters of intent,
leases, subleases and/or assignments, space planning costs, and other costs and
expenses incurred in connection with lease, sublease and/or assignment
negotiations and transactions with present or prospective tenants or other
occupants of the Project, including attorneys, accounting or other professional
fees (except for any such in-house professionals) and other costs and
expenditures incurred in connection with disputes with present or prospective
tenants or other occupants of the Project, (12) real estate brokers' leasing
commissions; (13) costs, including permit, license and inspection costs,
incurred with respect to the installation of improvements made for Tenant or
other tenants or occupants in the Project or incurred in renovating or otherwise
improving, decorating, painting or redecorating space for Tenant or other
tenants or other occupants in the Project; (14) any costs expressly excluded
from Operating Costs elsewhere in this Lease; (15) costs of any items
(including, but not limited to, costs incurred by Landlord for the repair of
damage to the Projects to the extent Landlord receives reimbursement from
insurance proceeds or from a third party (except that a deductible amount under
any insurance policy (not to exceed the then industry-standard deductible
amount) shall be included within Operating Costs); (16) rentals and other
related expenses for leasing an HVAC system, elevators, or other items (except
when needed in connection with normal repairs and maintenance of the Project)
which if purchased, rather than rented, would constitute a capital improvement
not included in Operating Costs

                                       6
<PAGE>

pursuant to this Lease; (17) depreciation, amortization and interest payments,
except as specifically included in Operating Costs pursuant to the terms of this
Lease and except on materials, tools, supplies and vendor-type equipment
purchased by Landlord to enable Landlord to supply services Landlord might
otherwise contract for with a third party, where such depreciation, amortization
and interest payments would otherwise have been included in the charge for such
third party's services, all as determined in accordance with generally accepted
accounting principles, consistently applied, and when depreciation or
amortization is permitted or required, the item shall be amortized over its
reasonably anticipated useful life; (18) costs incurred by Landlord for
alterations (including structural additions), repairs, equipment and tools which
are of a capital nature and/or which are considered capital improvements or
replacements under generally accepted accounting principles, consistently
applied, except as specifically included in Operating Costs pursuant to the
terms of this Lease; (19) expenses in connection with services or other benefits
which are not offered to Tenant or for which Tenant is charged for directly but
which are provided to another tenant or occupant of the Project, without charge;
(20) electric power costs or other utility costs for which any tenant directly
contracts with the local public service company (but Landlord shall have the
right to "gross up" as if such space was vacant); (21) costs incurred in
connection with the operation of retail stores selling merchandise and
restaurants in the Project to the extent such costs are in excess of the costs
Landlord reasonably estimates would have been incurred had such space been used
for general office use; (22) costs (including in connection therewith all
attorneys' fees and costs of settlement, judgments and/or payments in lieu
thereof), arising from claims, disputes or potential disputes in connection with
potential or actual claims or arbitrations pertaining to Landlord and/or the
Project, other than such claims or respecting any services or equipment used in
the operation of the Building by Landlord; (23) costs associated with the
operation of the business of the partnership which constitutes Landlord as the
same arc distinguished from the costs of operation of the Project; (24) costs
incurred in connection with the original construction of the Project; (25) costs
of correcting defects in or inadequacy of the initial design or construction of
the Project, including adverse soils conditions or earthquake retrofit, to the
extent required by laws in effect as of the date of this Lease; (26) charitable
or political contributions of Landlord; (27) costs with respect to the creation
of a mortgage or a superior lease or in connection with a sale of the Project,
including survey, legal fees and disbursements, transfer stamps and appraisals,
recording fees, engineering and inspection reports associated with the
contemplated sale; (28) any tenant improvement allowance given to any tenant
(including Tenant), whether given by contribution or credit against rent or
otherwise, and any abatements or credits to base rent or additional rent; (29)
any rental concessions to, or lease buy-outs of, Tenant or any other tenant in
the Project; (30) the costs, expenses and fees of any asset manager or
investment advisor representing Landlord or any partner or any other constituent
member of Landlord (provided that Operating Costs may include a pro rata portion
of the costs of any portfolio manager for the Project); (31) damages and repairs
necessitated by the gross negligence or willful misconduct of Landlord or
Landlord's employees, contractors or agents; and (32) costs incurred to (i)
comply with laws relating to the removal of any "Hazardous Material," as that
item is defined in Article 28 of this Lease, which was in existence on the
Project prior to the Commencement Date, and was of such a nature that a federal,
state or municipal governmental authority, if it had then had knowledge of the
presence of such Hazardous Material, in the state, and under the conditions that
it then existed on the Project, would have then required the removal of such
Hazardous Material or other remedial or containment action with respect thereto,
and (ii)

                                       7
<PAGE>

to remove, remedy, contain, or treat any Hazardous Material, which Hazardous
Material is brought onto the Project after the date hereof by Landlord or any
other tenant of the Project and is of such a nature, at that time, that a
federal, state or municipal governmental authority, if it had then had knowledge
of the presence of such Hazardous Material, in the state, and under the
conditions, that it then exists on the Project, would have then required the
removal of such Hazardous Material or other remedial or containment action with
respect thereto.

     Operating Costs shall be "net" so that they are reduced by the amount of
all recoupments, discounts, credits, reductions, allowances or the like actually
received by Landlord from third parties, on account of Operating Costs, except
that Landlord may include in Operating Costs the reasonable and actual costs and
expenses, if any, incurred by Landlord in obtaining such recoupments, discounts,
credits, reductions, allowances or the like.

     (d)  Determination of Payment.
          ------------------------

          (i)    If for any calendar year ending or commencing within the Term,
Tenant's Proportionate Share of Direct Costs for such calendar year exceeds
Tenant's Proportionate Share of Direct Costs for the Base Year, then Tenant
shall pay to Landlord, in the manner set forth in Sections 3(d)(ii) and (iii),
below, and as additional rent, an amount equal to the excess (the "Excess").

          (ii)   Landlord shall give Tenant a yearly expense estimate statement
(the "Estimate Statement") which shall set forth Landlord's reasonable estimate
(the "Estimate") of what the total amount of Direct Costs for the then-current
calendar year shall be and the estimated Excess (the "Estimated Excess") as
calculated by comparing Tenant's Proportionate share of Direct Costs for such
calendar year, which shall be based upon the Estimate, to Tenant's Proportionate
Share or Direct Costs for the Base Year. The failure of Landlord to timely
furnish the Estimate Statement for any calendar year shall not preclude Landlord
from enforcing its rights to collect any Estimated Excess under this Article 3.
If pursuant to the Estimate Statement an Estimated Excess is calculated for the
then-current calendar year, Tenant shall pay, with its next installment of
Monthly Basic Rental due, a fraction of the Estimated Excess for the then
current calendar year (reduced by any amounts paid pursuant to the last sentence
of this Section 3(d)(ii)). Such fraction shall have as its numerator the number
of months which have elapsed in such current calendar year to the month of such
payment, both months inclusive, and shall have twelve (12) as its denominator.
Until a new Estimate Statement is furnished, Tenant shall pay monthly, with the
Monthly Basic Rental installments, an amount equal to one-twelfth (1/12) of the
total Estimated Excess set forth in the previous Estimate Statement delivered by
Landlord to Tenant.

          (iii)  In addition, Landlord shall endeavor to give to Tenant on or
before the first day of April following the end of each calendar year, a
statement (the "Statement") which shall state the Direct Costs incurred or
accrued for such preceding calendar year, and which shall indicate the amount,
if any; of the Excess. Upon receipt of the Statement for each calendar year
during the Term, if amounts paid by Tenant as Estimated Excess are less than the
actual Excess as specified on the Statement, Tenant shall pay, with its next
installment of Monthly Basic Rental due, the full amount of the Excess for such
calendar year, less the amounts, if any, paid during such calendar year as
Estimated Excess. If, however, the Statement indicates that

                                       8
<PAGE>

amounts paid by Tenant as Estimated Excess are greater than the actual Excess as
specified on the Statement, such overpayment shall be credited against Tenant's
next installments of Estimated Excess (or if the next installment of Estimated
Excess is less than the amount of such overpayment, the remainder shall be
credited against Basic Rental). The failure of Landlord to timely furnish the
Statement for any calendar year shall not prejudice Landlord from enforcing -its
rights under this Article 3. Even though the Term has expired and Tenant has
vacated the Premises, when the final determination is made of Tenant's
Proportionate Share of the Direct Costs for the calendar year in which this
Lease terminates, if an Excess is present, Tenant shall immediately pay to
Landlord an amount as calculated pursuant to the provisions of this Article 3(d)
or, in the alternative, if Tenant has overpaid any Estimated Excess, the full
amount of such overpayment shall be refunded to Tenant concurrently with the
Statement. The provisions of this Section 3(d)(iii) shall survive the expiration
or earlier termination of the Term.

          (iv) Within one hundred eighty (180) days after receipt of a Statement
by Tenant ("Review Period"), if Tenant disputes the amount set forth in the
Statement, Tenant's employees or an independent certified public accountant
(which accountant is a member of a nationally or regionally recognized
accounting firm), designated by Tenant, may, after reasonable notice to Landlord
and at reasonable times, inspect Landlord's records at Landlord's offices in Los
Angeles County or, if Landlord does not then have an office in Los Angeles
County, upon request from Tenant, Landlord shall forward the appropriate records
to the Tenant's office in Los Angeles County at Tenant's sole cost and expense,
provided that Tenant is not then in default after expiration of all applicable
cure periods and provided further that Tenant and such accountant or
representative shall, and each of them shall use their commercially reasonable
efforts to cause their respective agents and employees to, maintain all
information contained in Landlord's records in strict confidence.
Notwithstanding the foregoing, Tenant shall only have the right to review
Landlord's records one (1) time during any twelve (12) month period to verify
and validate the amount or nature or applicability of all applicable costs,
expenses or charges. Tenant's failure to dispute the amounts or the nature or
applicability of any item set forth in any Statement within the Review Period
shall be deemed to be Tenant's approval of such Statement and Tenant,
thereafter, waives the right or ability to dispute the amounts or the nature or
applicability of any item set forth in such Statement. If after such inspection,
but within thirty (30) days after the Review Period, Tenant notifies Landlord in
writing that Tenant still disputes such amounts or the nature or applicability
of any item, a certification as to the proper amount shall be made in accordance
with industry standard accounting practices, at Tenant's expense, by an
independent certified public accountant selected by the parties and who is a
member of a nationally or regionally recognized accounting firm. Landlord shall
cooperate in good faith with Tenant and the accountant to show Tenant and the
accountant the information upon which the certification is to be based. However,
if such certification by the accountant proves that the Direct Costs set forth
in the Statement were overstated by more than live percent (5%), then the cost
of the accountant and the cost of such certification shall be paid for by
Landlord. Promptly following the parties receipt of such certification, the
parties shall make such appropriate payments or reimbursements, as the case may
be, to each other, as arc determined to be owing pursuant to such certification.

          (v)  If the Project is a part of a multi-building development, those
Direct Costs attributable to such development as a whole (and not attributable
solely to any individual

                                       9
<PAGE>

building therein) shall be allocated by Landlord to the Project and to the other
buildings within such development on an equitable basis.

                                   ARTICLE 4

                               SECURITY DEPOSIT
                               ----------------

     Tenant has deposited with Landlord the sum set forth in Article 1.F. of the
Basic Lease Provisions as security for the full and faithful performance of
every provision of this Lease to be performed by Tenant.  If Tenant breaches any
provision of this Lease, including but not limited to the payment of rent,
Landlord may, following not less than three (3) business days written notice to
Tenant along with a written explanation of the reasons therefore, use all or any
part of this security deposit for the payment of any rent or any other sums in
default, or to compensate Landlord for any other loss or damage which Landlord
may suffer by reason of Tenant's default.  If any portion of said deposit is so
used or applied, Tenant shall, within rive (5) days after written demand
therefor, deposit cash with Landlord in an amount sufficient to restore the
security deposit to its original amount.  If monthly Basic Rental is increased,
the amount of the security deposit required to be maintained by Tenant shall
also be increased so as to maintain, at all times and from time to time, the
same ratio to Monthly Basic Rental as applicable on the Rent Commencement Date.
Tenant agrees that Landlord shall not be required to keep the security deposit
in trust, segregate it or keep it separate from Landlord's general funds but
Landlord may commingle the security deposit with its general funds and Tenant
shall not be entitled to interest on such deposit.  At the expiration of the
Lease Term, and provided there exists no default by Tenant hereunder, the
security deposit or any balance thereof shall be returned to Tenant (or, at
Landlord's option, to Tenant's assignee), provided that subsequent to the
expiration of this Lease, Landlord may retain from said security deposit (i) an
amount reasonably estimated by Landlord to cover potential Direct Cost
reconciliation payments due with respect to the calendar year in which this
Lease terminates or expires (such amount so retained shall not, in any event,
exceed ten percent (10%) of estimated Direct Cost payments due from Tenant for
such calendar year through the date of expiration or earlier termination of this
Lease and any amounts so retained and not applied to such reconciliation shall
be returned to Tenant within thirty (30) days after Landlord's delivery of the
Statement for such calendar year), (ii) any and all amounts reasonably estimated
by Landlord to cover the anticipated costs to be incurred by Landlord to remove
any signage provided to Tenant under this Lease and to repair any damage caused
by such removal (in which case any excess amount so retained by Landlord shall
be returned to Tenant within thirty (30) days after such removal and repair),
and (iii) any and all amounts permitted by law or this Article 4. Tenant hereby
waives the provisions of Section 1950.7 of the California Civil Code and all
other provisions of law, now or hereafter in effect, which provide that Landlord
may claim from a security deposit only those sums reasonably necessary to remedy
defaults in the payment of rent, to repair damage caused by Tenant or to clean
the Premises, it being agreed that Landlord may, in addition, claim those sums
specified in this Article 4 above and/or those sums reasonably necessary to
compensate Landlord for any other loss or damage, foreseeable or unforeseeable,
caused by the acts or omissions of Tenant or any officer, employee, agent,
contractor or invitee of Tenant.

                                       10
<PAGE>

                                   ARTICLE 5

                                 HOLDING OVER
                                 ------------

     Should Tenant, without Landlord's written consent, hold over after
termination of this Lease, Tenant shall become a tenant from month to month,
only upon each and all of the terms herein provided as may be applicable to a
month to month tenancy and any such holding over shall not constitute an
extension of this Lease.  During such holding over, Tenant shall pay in advance,
monthly, rent at one hundred twenty-five percent (125%) of the rate in effect
for the last month of the Term of this Lease, in addition to, and not in lieu
of, all other payments required to be made by Tenant hereunder including but not
limited to Tenant's Proportionate Share of any increase in Direct Costs.
Nothing contained in this Article 5 shall be construed as consent by Landlord to
any holding over of the Premises by Tenant, and Landlord expressly reserves the
right to require Tenant to surrender possession of the Premises to Landlord as
provided in this Lease upon the expiration or earlier termination of the Term.
If Tenant fails to surrender the Premises upon the expiration or termination of
this Lease, Tenant agrees to indemnify, defend and hold Landlord harmless from
all reasonable costs, loss, expense or liability, including. without limitation,
claims made by any succeeding tenant and real estate brokers claims and
attorney's fees.

                                   ARTICLE 6

                            PERSONAL PROPERTY TAXES
                            -----------------------

     Tenant shall pay, prior to delinquency, all taxes assessed against or
levied upon trade fixtures, furnishings, equipment and all other personal
property of Tenant located in the Premises.  In the event any or all of Tenant's
trade fixtures, furnishings, equipment and other personal property shall be
assessed and taxed with property of Landlord, or if the cost or value of any
leasehold improvements in the Premises exceeds the cost or value of the Premises
as renovated with Improvements installed at Landlord's expense and, as a result,
real property taxes for the Project are increased, Tenant shall pay to Landlord
its share of such taxes within ten (10) days after delivery to Tenant by
Landlord of a statement in writing setting forth the amount of such taxes
applicable to Tenant's property or above-standard improvements.  Tenant shall
assume and pay to Landlord at the time of paying Basic Rental any excise, sales,
use, rent, occupancy, garage, parking, gross receipts or other taxes (other than
net income taxes) which may be imposed on or on account of letting of the
Premises or the payment of Basic Rental or any other sums due or payable
hereunder, and which Landlord may be required to pay or collect under any law
now in effect or hereafter enacted.  Tenant shall pay directly to the party or
entity entitled thereto all business license fees, gross receipts taxes and
similar taxes and impositions which may from time to time be assessed against or
levied upon Tenant, as and when the same become due and before delinquency.
Notwithstanding anything to the contrary contained herein, any sums payable by
Tenant under this Article 6 shall not be included in the computation of "Tax
Costs" or "Operating Costs."

                                       11
<PAGE>

                                   ARTICLE 7

                                      USE
                                      ---

     Tenant shall use and occupy the Premises only for the use set forth in
Article 1.G. of the Basic Lease Provisions and shall not use or occupy the
Premises or permit the same to be used or occupied for any other purpose without
the prior written consent of Landlord, which consent may be given or withheld in
Landlord's sole and absolute discretion, and Tenant agrees that it will use tile
Premises in such a manner so as not to interfere with or infringe the rights of
other tenants in the Project.  Tenant shall, at its sole cost and expense,
promptly comply with all laws, statutes, ordinances and governmental regulations
or requirements now in force or which may hereafter be in force relating to or
affecting (i) the condition, use or occupancy of the Premises or the Project
excluding structural changes to the Project not related to Tenant's particular
use of the Premises (provided that this provision shall not apply to the
construction of the Improvements pursuant to the Tenant Work Letter), and (ii)
improvements installed or constructed in the Premises by or for the benefit of
Tenant.  Tenant shall not do or permit to be done anything which would
invalidate or increase the cost of any fire and extended coverage insurance
policy covering the Project and/or the property located therein and Tenant shall
comply with all rules, orders, regulations and requirements of any organization
which sets out standards, requirements or recommendations commonly referred to
by major fire insurance underwriters.  Tenant shall promptly upon demand
reimburse Landlord for any additional premium charges for any such insurance
policy assessed or increased by reason of Tenant's failure to comply with the
provisions of this Article.

                                   ARTICLE 8

                             CONDITION OF PREMISES
                             ---------------------

     The Premises shall be initially improved as provided in, and subject to,
the Tenant Work Letter attached hereto as Exhibit "D" and made a part hereof.
The existing leasehold improvements in the Premises as of the date of this
Lease, together with the Improvements (as defined in the Tenant Work Letter) may
be collectively referred to herein as the "Tenant Improvements."  The taking of
possession of the Premises by Tenant shall conclusively establish that the
Premises and the Project were at such time in satisfactory condition.  Tenant
hereby waives Sections 1941 and 1942 of the Civil Code of California or any
successor provision of law.

     Landlord reserves the right from time to time, but, except in the case of
the installation of the initial Tenant Improvements, subject to payment by
and/or reimbursement from Tenant as otherwise may be provided herein: (i) to
install, use, maintain, repair, replace and relocate for service to the Premises
and/or other parts of the Project pipes, ducts, conduits, wires, appurtenant
fixtures, and mechanical systems, wherever located in the Premises or the
Project, (ii) to alter, close or relocate any facility in the Premises or the
Common Areas or otherwise conduct any of the above activities for the purpose of
complying with a general plan for fire/life safety for the Project or otherwise
and (iii) to comply with any federal, state or local law, rule or order with
respect thereto or the regulation thereof not currently in effect.  Landlord
shall attempt to perform any such work with the least inconvenience to Tenant as
possible, but except as

                                       12
<PAGE>

provided in Section 11(h) below, Tenant shall not be permitted to withhold or
reduce Basic Rental or other charges due hereunder as a result of same or
otherwise make claim against Landlord for interruption or interference with
Tenant's business and/or operations.

     Except as may be requested by Tenant or as may be required by law, Landlord
may not install any columns, shafts, pipes, ducts, utility lines, conduits or
equipment (collectively, "Utility Lines") in the Premises not located therein as
of the date of this Lease unless all of the following conditions are met:

     (a)  The Utility Lines are located in Tenant's non-public areas in
locations which will not interfere with Tenant's use and enjoyment of such
areas, or if, from the standpoint of sound architectural and engineering
standards such Utility Lines cannot be located in the non-public areas without
extraordinary cost, then the same are located completely beneath the floor or
completely within the walls of public areas or completely above the Tenant's
hung ceiling, except that: (i) the Utility Lines may not displace or interfere
with the location or placement of Tenant's Utility Lines serving the Premises,
it being understood that Tenant's Utility Lines have priority in their location
in the Premises, and (ii) with respect to the ceiling area, in no event may the
Utility Lines extend lower than a height which is twelve (12) feet above the
finished floor of the Premises, and (iii) if no finished ceiling is installed by
Tenant, such area will not be available to Landlord for this purpose and
Landlord will be restricted to the sub-floor or interior walls as hereinbefore
described; and

     (b)  Such work is performed during hours that Tenant is not open for
business (except in emergencies) unless Tenant, in the exercise of its
reasonable discretion, agrees otherwise.

                                   ARTICLE 9

                            REPAIRS AND ALTERATIONS
                            -----------------------

     (a)  Landlord shall maintain the structural portions of the Project
including the foundation, floor/ceiling slabs, roof, curtain wall, exterior
glass, columns, beams, shafts, stairs, elevator cabs and common areas and shall
also maintain and repair the basic electrical, lifesafety, plumbing, sprinkler
systems and heating, ventilating and air conditioning systems.

     (b)  Notwithstanding any provision in Section 9(a) to the contrary, if an
event or circumstance occurs which results in Landlord's obligation to repair or
maintain the Project pursuant to Section 9(a) above and Landlord "fails to act"
within a reasonable period of time (depending on the nature of the repair
required) after receipt of written notice (or oral notice in the event of an
Emergency Situation (as hereinafter defined)), but in any event not later than
fourteen (14) days after receipt of such notice (or not later than three (3)
business days in the case of an Emergency Situation), then Tenant may proceed to
take such required action.  For purposes of this Section 9(b), Tenant shall only
be permitted to take such required action if Tenant fully complied with
Landlord's standard policies and procedures with regard to repair maintenance,
namely Tenant shall designate by notice to Landlord in writing one (1)
individuate to be the Tenant's representative with regard to requesting repair
and maintenance from Landlord.  Tenant shall only be deemed to have given notice
to Landlord if such specific representative (and no other person) has issued the
written or oral notice of such required

                                       13
<PAGE>

maintenance or repair, as applicable, to the Project manager, during normal
business hours, or to the twenty-four (24) hour security guard, after normal
business hours. In any event, Landlord shall only be deemed to have "failed to
act" pursuant to this Article 9(b) if the Project engineer (or his or her agent)
fails to respond to such Tenant's representative setting forth the course of
action to be pursued by Landlord within the applicable three (3) or fourteen
(14) day period. In the event such Project engineer (or his or her agent) fails
to timely respond to such maintenance or repair request, then before Tenant
proceeds to take such required action, Tenant must give Landlord an additional
notice in writing specifying that Tenant will take such action setting forth the
action which Tenant plans to take; provided, however, that Tenant shall not be
required to give this additional notice in the event of an Emergency Situation.
Such additional notice, if required, must be delivered to Landlord two (2)
business days before Tenant commences such action. If Landlord fails to commence
to perform such obligations within such two (2) business day period or to
thereafter diligently pursue such item to completion, then Tenant may perform
such obligation at Landlord's expense. For purposes of this Section 9(b), the
term "Emergency Situation" shall mean the loss of electrical or
telecommunication service to the Premises for more than twenty-four (24)
consecutive hours, or a total of twenty-four (24) hours within a three (3)
consecutive business day period. An interruption of HVAC services shall not be
considered to be an "Emergency Situation" pursuant to the immediately preceding
sentence; however, if HVAC service is discontinued for more than twenty-four
(24) consecutive hours, or a total of twenty-four (24) hours within a three (3)
consecutive business day period, Landlord agrees to provide temporary equipment
for such service to the Premises. If the action taken by Tenant was an
obligation to be performed by Landlord, then Tenant will be entitled to prompt
reimbursement by Landlord of Tenant's reasonable costs and expenses in taking
such action plus interest thereon at the Interest Rate. In the event that the
action taken by Tenant affects the common Project systems, including any
intrabuilding network- cable or the structural integrity of the Project, Tenant
will use only those contractors used by Landlord in the Project on such systems
unless such contractors are unwilling or unable to perform or timely perform
such work. In such event, Tenant may use the services of any other reputable,
similarly qualified, licensed, bonded contractor approved by Landlord.
Notwithstanding the foregoing, provided Tenant has made reasonable efforts to
contact those contractors customarily used by Landlord in the Project,
Landlord's approval of such alternative contractor shall not be required in the
case of an Emergency Situation, provided that in the event Tenant utilizes such
alternative contractor, Tenant shall indemnify, defend and hold Landlord
harmless from and against any claims arising from the work performed in the
Project by such alternative contractor. If Landlord does not deliver a detailed
written objection to any invoices submitted by Tenant as a result of Tenant's
exercise of its rights under this Section 9(b). within thirty (30) days after
receipt, then Tenant will be entitled to deduct such amounts from rent payable
by Tenant under this Lease (provided Landlord has not paid such invoices prior
to the deduction from rent). If, however, Landlord does deliver such written
objection to the payment of any invoice, then Tenant may exercise any of its
rights at law or in equity to collect such sums plus such interest from
Landlord.

     (c)  Except as expressly provided as Landlord's obligation in this Article
9, Tenant shall keep the Premises in good condition and repair.  All damage or
injury to the Premises or the Project resulting from the act or negligence of
Tenant, its employees, agents or visitors, guests, invitees or licensees
licensees or by the use of the Premises shall be promptly repaired by Tenant, at
its sole cost and expense, to the satisfaction of Landlord; provided, however,
that for damage to the Project as a result of casualty or for any repairs that
may impact the mechanical,

                                       14
<PAGE>

electrical, plumbing, heating, ventilation or air-conditioning systems of the
Project, Landlord shall have the right (but not the obligation) to select the
contractor and oversee all such repairs. Landlord may make any repairs which arc
not promptly made by Tenant after Tenant's receipt of written notice and the
reasonable opportunity of Tenant to make said repair within five (5) business
days from receipt of said written notice, and charge Tenant for the reasonable
cost thereof, which cost shall be paid by Tenant within thirty (30) days from
invoice from Landlord. Tenant shall be responsible for the design and function
of all non-standard improvements (i.e., improvements which are not typical for
general office use) of the Premises, whether or not installed by Landlord at
Tenant's request. Except as expressly provided in Section 9(b) above, Tenant
waives all rights, to make repairs at the expense of Landlord, or to deduct the
cost thereof from the rent.

     (d)  Tenant shall make no alterations, changes or additions in or to the
Premises (collectively, "Alterations") without Landlord's prior written consent
(such consent shall not be unreasonably withheld or delayed), and then only by
contractors or mechanics approved by Landlord in writing and upon the approval
(such approval not to be unreasonably withheld or delayed) by Landlord in
writing of fully detailed and dimensioned plans and specifications pertaining to
the Alterations in question, to be prepared and submitted by Tenant at its sole
cost and expense.  Notwithstanding the foregoing, Landlord will be deemed to
have given such consent or approval if Landlord fails to disapprove such
Alterations within ten (10) business days after the date Tenant submits its
plans and specifications to Landlord with a written request for such approval or
consent where such written request indicates that Landlord's failure to respond
within such ten (10) business day period shall be deemed to constitute
Landlord's approval.  Except as provided in Subsection 9(f) below, Tenant shall
at its sole cost and expense obtain all necessary approvals and permits
pertaining to any Alterations approved by Landlord. If Landlord, in approving
any Alterations, specifies a reasonable commencement date therefor, Tenant shall
not commence any work with respect to such Alterations prior to such date.
Tenant hereby indemnities, defends and agrees to hold Landlord free and harmless
from all liens and claims of lien, and all other liability, claims and demands
arising out of any work done or material supplied to the Premises by or at the
request of Tenant in connection with any Alterations.  The foregoing sentence
shall not apply to any Improvements installed by Landlord pursuant to the terms
and conditions of the Tenant Work Letter.

     (e)  If permitted Alterations are made, they shall be made at Tenant's sole
cost and expense and shall be and become the property of Landlord, except that
Landlord may, by written notice to Tenant given at least thirty (30) days prior
to the end of the Term, require Tenant at Tenant's expense to remove all
partitions, counters, railings and other Alterations installed by Tenant, and to
repair any damages to the Premises caused by such removal.  Any and all costs
attributable to or related to the applicable building codes of the city in which
the Project is located (or any other authority having jurisdiction over the
Project) arising from Tenants plans, specifications, improvements, alterations
or otherwise shall be paid by Tenant at its sole cost and expense.

     (f)  Landlord and Tenant hereby acknowledge that pursuant to the Plans
referenced in Section 1 of the Tenant Work Letter, Landlord shall, at Landlord's
sole cost and expense, relocate three (3) dedicated heating, ventilation and air
conditioning units currently existing in the Project to service the Premises
(the "Existing Package Units").  Landlord shall relocate such

                                       15
<PAGE>

Existing Package Units to sites which shall insure the maximum possible HVAC
efficiency for the specific areas such units are intended to serve, as
determined by Landlord's engineers. Pursuant to the Plans, Landlord shall also
install separate meters in order to measure the amount of electricity furnished
to such Existing Package Units. Such Existing Package Units, as of the Rent
Commencement Date, shall be in good working order, condition and repair. In
addition, Tenant shall be entitled to install, as an Alteration, additional
dedicated heating, ventilation and air conditioning units ("Additional Package
Units") within the Premises at Tenant's sole cost and expense. The plans and
specifications for any Additional Package Units shall, as indicated this
Article 9, be subject to Landlord's reasonable approval. If Tenant elects to
install Additional Package Units within the Premises, Tenant shall also connect,
at Tenant's sole cost and expenses, the separate electrical meter installed in
connection with the Existing Package Units to the Additional Package Units in
order to measure the amount of electricity furnished to all such units. The
Existing Package Units, together with any Additional Package Units, may be
referred to herein collectively as the "Package Units." Tenant shall be
responsible for Landlord's actual cost of supplying electricity to such Package
Units as reflected by such meters, which amounts shall be payable on a monthly
basis as Additional Rent. Tenant shall be solely responsible for maintenance and
repair of the Package Units and such units shall be considered to be a fixture
within the Premises and shall remain upon the Premises upon the expiration or
earlier termination of the Lease Term or any applicable Option Term.

     (g)  Notwithstanding anything to the contrary contained herein, except for
(i) computer or telecommunication work, (ii) work on any Package Units servicing
the Premises, or (iii) minor alterations (the cost of which does not exceed
S25,000.00) not involving the base Project systems, Landlord shall perform any
Alterations to be performed in accordance with this Article 9 on behalf of
Tenant, which Alterations shall be constructed in a good and workmanlike manner
using licensed, bonded and reputable contractors whom Landlord has approved to
perform such work in the Project.  Landlord shall obtain at least three (3) bids
for any Alterations to be constructed in accordance with this Article 9 and all
bids shall be submitted to Tenant's representative set forth in Section 6.1 of
the Tenant Work Letter or such other person as Tenant may designate from time to
time for Tenant's review and reasonable approval.  In consideration of
Landlord's coordination and performance of the foregoing work on behalf of
Tenant, Landlord shall charge a supervision and administration fee in the amount
of ten percent (10%) of the cost of any Alterations performed by Landlord.

     (h)  The construction of initial improvements to the Premises shall be
governed by the terms of the Tenant Work Letter and not the terms of this
Article 9.

                                  ARTICLE 10

                                     LIENS
                                     -----

     Tenant shall keep the Premises and the Project free from any mechanics'
liens, vendors liens or any other liens arising out of any work performed,
materials furnished or obligations incurred by Tenant, and agrees to defend,
indemnify and hold harmless Landlord from and against any such lien or claim or
action thereon, together with costs of suit and reasonable attorneys' fees
incurred by Landlord in connection with any such claim or action.  Before
commencing any work of alteration, addition or improvement to the Premises,
Tenant shall give

                                       16
<PAGE>

Landlord at least ten (10) business days' written notice of the proposed
commencement of such work (to afford Landlord an opportunity to post appropriate
notices of non-responsibility). In the event that there shall be recorded
against the Premises or the Project or the property of which the Premises is a
part any claim or lien arising out of any such work performed, materials
furnished or obligations incurred by Tenant and such claim or lien shall not be
removed or discharged within ten (10) days after Tenant receives notice of
filing by bond or otherwise, Landlord shall. after five (5) days prior notice to
Tenant, have the right to require that Tenant deposit with Landlord in cash,
lawful money of the United States, one hundred fifty percent (150%) of the
amount of such claim, which sum may be retained by Landlord until such claim
shall have been removed of record or until judgment shall have been rendered on
such claim and such judgment shall have become final, at which time Landlord
shall have the right to apply such deposit in discharge of the judgment on said
claim and any costs, including attorneys' fees incurred by Landlord, and shall
remit the balance thereof to Tenant. Notwithstanding the foregoing, in the event
that such claim or lien has not be removed or discharged within six (6) months
after Tenant receives notice of filing, Landlord shall, at Landlord's election,
have the right to require Tenant to rile a bond or otherwise remove such lien.

                                  ARTICLE 11

                               PROJECT SERVICES
                               ----------------

     (a)  Landlord agrees to furnish to the Premises, at a cost to be included
in Operating Costs, from 8:00 a.m. to 6:00 p.m. Mondays through Fridays and 8:00
a.m. to 1:00 p.m. on Saturdays, excepting New Year's Day, Memorial Day, Martin
Luther King Day, Presidents Day, Independence Day, Labor Day, Thanksgiving Day,
and Christmas Day, air conditioning and heat ("HVAC") all in such reasonable
quantities as in the judgment of Landlord is reasonably necessary for the
comfortable occupancy of the Premises. With respect to HVAC supplied by
Landlord, Landlord shall comply with any current or future laws, ordinances,
rules and regulations concerning office building indoor air quality, promulgated
by any government authority having jurisdiction over the Project or over persons
occupying or working in the Project. In addition, Landlord shall provide
electric current for normal lighting and normal office machines, elevator
service and water on the same floor as the Premises for lavatory and drinking
purposes in such reasonable quantities as in the judgment of Landlord is
reasonably necessary for general office use. First-class janitorial and
maintenance services shall be furnished five (5) days per week, excepting local
and national holidays by a bonded and insured janitorial contractor retained by
Landlord. Tenant shall comply with all rules and regulations which Landlord may
reasonably establish for the proper functioning and protection of the common
area "air conditioning, heating, elevator, electrical intrabuilding network
cable and plumbing systems. Except as otherwise provided in Section 11(h) below,
Landlord shall not be liable for, and there shall be no rent abatement as a
result of, any stoppage, reduction or interruption of any such services caused
by governmental rules, regulations or ordinances, riot, strike, labor disputes,
breakdowns, accidents, necessary repairs or other cause. Except as specifically
provided in this Article 11, Tenant agrees to pay for all utilities and other
services utilized by Tenant and additional building services furnished to Tenant
not uniformly furnished to all tenants of the Project at the rate generally
charged by Landlord to tenants of the Project.

                                       17
<PAGE>

     (b)  Tenant will not, without the prior written consent of Landlord, use
any apparatus or device in the Premises which will in any way increase the
amount of electricity or water usually furnished or supplied for use of the
Premises as general office space; nor connect any apparatus, machine or device
with water pipes or electric current (except through existing electrical outlets
in the Premises), for the purpose of using electric current or water.

     (c)  If Tenant shall require electric current in excess of that which
Landlord is obligated to furnish under Article 11(a) above, Tenant shall first
obtain the written consent of Landlord, which Landlord may refuse in its sole
and absolute discretion, to the use thereof and Landlord may cause an electric
current meter or submeter to be installed in the Premises to measure the amount
of such excess electric current consumed by Tenant in the Premises.  The cost of
any such meter and of installation, maintenance and repair thereof shall be paid
for by Tenant and Tenant agrees to pay to Landlord, promptly upon demand
therefor by Landlord, for all such excess electric current consumed by any such
use as shown by said meter at the rates charged for such service by the city in
which the Project is located or the local public utility, as the case may be,
furnishing the same, plus any additional expense incurred by Landlord in keeping
account of the electric current so consumed.

     (d)  If any lights, machines or equipment (including but not limited to
computers) are used by Tenant in the Premises which materially affect the
temperature otherwise maintained by the air conditioning system, or generate
substantially more heat in the Premises than would be generated by the building
standard lights and usual office equipment, Landlord shall have the right, after
five (5) days prior written notice to Tenant, to install any machinery and
equipment which Landlord reasonably deems necessary to restore temperature
balance, including but not limited to modifications to the standard air
conditioning equipment, and the reasonable cost thereof, including the
reasonable cost of installation and any additional cost of operation and
maintenance occasioned thereby, shall be paid by Tenant to Landlord upon demand
by Landlord.  Landlord shall not be liable under any circumstances for loss of
or injury to property, however occurring, through or in connection with or
incidental to failure to furnish any or the foregoing.  Landlord hereby
acknowledges that so long as Tenant utilizes the Existing Package Units,
Tenant's anticipated density in the Premises of one hundred twenty (120) people
and two hundred (200) standard desk-top computers will not materially affect the
temperature otherwise maintained by the Project-standard HVAC system in the
Premises.

     (e)  If Tenant requires heating, ventilation and/or air conditioning during
times other than the times provided in Article 11(a) above, Tenant shall give
Landlord such advance notice as Landlord shall reasonably require and shall pay
Landlord's standard charge for such afterhours use, which rates are currently,
as of the date of this Lease, Fifty-Five Dollars ($55.00) per hour (subject to
increase from time to time in accordance with increases in amounts reasonably
estimated by Landlord to be its cost of providing such service, which costs
shall be limited to increased electrical costs).  Landlord shall use
commercially reasonable efforts to install an "on-demand" after-hours HVAC
system servicing the Premises on or before December 31, 1999, in which case
Tenant shall not be required to give Landlord advance notice of such after-hours
use pursuant to the first sentence of this Article 11(e).

     (f)  Landlord may impose a reasonable charge for any utilities or services
(other than electric current and heating, ventilation and/or air conditioning
which shall be governed by

                                       18
<PAGE>

Articles 11(c) and (e) above) utilized by Tenant in excess of the amount or type
that Landlord reasonably determines is typical for general office use.

     (g)  Subject to Landlord's security requirements and Articles 16 and 18
below, Tenant shall have access to the Premises twenty-four (24) hours per day,
seven (7) days per week, three hundred sixty-five (365) days per year throughout
the Lease Term.

     (h)  An "Abatement Event" shall be defined as an event that prevents Tenant
from using the Premises or any portion thereof, as a result of any failure to
provide services or access to the Premises, where (i) Tenant does not actually
use the Premises or such portion thereof, and (ii) such event is not caused by
the negligence or willful misconduct of Tenant, its agents, employees or
contractors.  Tenant shall give Landlord notice ("Abatement Notice") of any such
Abatement Event, and if such Abatement Event continues beyond the "Eligibility
Period" (as that term is defined below), then the Basic Rental and Tenant's
Proportionate Share of Direct Costs and Tenant's obligation to pay for parking
shall be abated entirely or reduced, as the case may be, after expiration of the
Eligibility Period for such time that Tenant continues to be so prevented from
using, and does not use, the Premises or a portion thereof, in the proportion
that the rentable area of the portion of the Premises that Tenant is prevented
from using, and does not use, bears to the total rentable area of the Premises;
provided, however, in the event that Tenant is prevented from using, and does
not use, a portion of the Premises for a period of time in excess of the
Eligibility Period and the remaining portion of the Premises is not sufficient
to allow Tenant to effectively conduct its business therein, and if Tenant does
not conduct its business from such remaining portion, then for such time after
expiration of the Eligibility Period during which Tenant is so prevented from
effectively conducting its business therein, the Basic Rental and Tenant's
Proportionate Share of Direct Costs and Tenant's obligation to pay for parking
for the entire Premises shall be abated entirely for such time as Tenant
continues to be so prevented from using, and does not use, the Premises.  If,
however, Tenant reoccupies any portion of the Premises during such period, the
Basic Rental and Tenant's Proportionate Share of Direct Costs allocable to such
reoccupied portion, based on the proportion that the rentable area of such
reoccupied portion of the Premises bears to the total rentable area of the
Premises, shall be payable by Tenant from the date Tenant reoccupies such
portion of the Premises.  The term "Eligibility Period" shall mean a period of
five (5) consecutive business days after Landlord's receipt of any Abatement
Notice(s).  In the event the Abatement Event continues for one hundred eighty
(180) consecutive days, Tenant shall be entitled to terminate this Lease upon
written notice to Landlord given at any time after the expiration of such one
hundred eighty (180) day period but before such Abatement Event is remedied,
which termination shall be effective as of the date of such notice.  Such right
to abate Basic Rental and Tenant's Proportionate Share of Direct Costs and/or to
terminate this Lease, as applicable, shall be Tenant's sole and exclusive remedy
at law or in equity for an Abatement Event.

                                  ARTICLE 12

                              RIGHTS OF LANDLORD
                              ------------------

     Landlord and its agents shall have the right to enter the Premises at all
reasonable times (upon not less than twenty-four (24) hours advance notice to
Tenant (except in the case of an emergency or regularly scheduled service (e.g.
janitorial service)) for the purpose of cleaning the

                                       19
<PAGE>

Premises, examining or inspecting the same, serving or posting and keeping
posted thereon notices as provided by law, or which Landlord deems necessary for
the protection of Landlord or the Property, showing the same to prospective
tenants, lenders or purchasers of the Project, in the case of an emergency, and
for making such alterations, repairs, improvements or additions to the Premises
or to the Project as Landlord may deem necessary or desirable. If Tenant shall
not be personally present to open and permit an entry into the Premises at any
time when such an entry by Landlord is necessary or permitted hereunder,
Landlord may enter by means of a master key or may enter forcibly, only in the
case of an emergency, without liability to Tenant and without affecting this
Lease. Landlord shall attempt to minimize any inconvenience to Tenant in
connection with any such entry and shall take all reasonable steps to avoid
interruption or interference with Tenant's business and/or operations, except in
the case of an emergency or regularly scheduled service (e.g., janitorial
service). Landlord will provide Tenant with an opportunity to have a
representative of Tenant accompany Landlord during any such entry to the
Premises.

                                  ARTICLE 13

                INDEMNITY; EXEMPTION OF LANDLORD FROM LIABILITY
                -----------------------------------------------

     (a)  Indemnity. Tenant shall indemnify, defend and hold Landlord harmless
          ---------
from any and all claims arising from Tenant's use of the Premises or the Project
including Tenant's Signage rights set forth in Article 33 or from the conduct of
its business or from any activity, work or thing which may be permitted or
suffered by Tenant in or about the Premises or the Project and shall further
indemnify, defend and hold Landlord harmless from and against any and all claims
arising from any breach or default in the performance of any obligation on
Tenant's part to be performed under this Lease or arising from any gross
negligence of Tenant or any of its agents, contractors, employees or invitees,
patrons, customers or members in or about the Project and from any and all
costs, attorneys' fees, expenses and liabilities incurred in the defense of any
claim or any action or proceeding brought thereon, including negotiations in
connection therewith. Tenant hereby assumes all risk of damage to property or
injury to persons in or about the Premises from any cause, and Tenant hereby
waives all claims in respect thereof against Landlord, excepting where the
damage is caused solely by the gross negligence or willful misconduct of
Landlord.

     (b)  Exemption of Landlord from Liability. Landlord shall not be liable for
          ------------------------------------
injury to Tenant's business, or loss of income therefrom, or, except in
connection with damage or injury resulting from the failure of Landlord to
perform its obligations under the Lease or the gross negligence or willful
misconduct of Landlord, or its authorized agents, for damage that may be
sustained by the person, goods, wares, merchandise or property of Tenant, its
employees, invitees, customers, agents, or contractors, or any other person in,
on or about the Premises directly or indirectly caused by or resulting from
fire, steam, electricity, gas, water, or rain which may leak or flow from or
into any part of the Premises, or from the breakage, leakage, obstruction or
other defects of the pipes, sprinklers, wires, appliances, plumbing, a r
conditioning, light mixtures, or mechanical or electrical systems or from
intrabuilding network cable, whether such damage or injury results from
conditions arising upon the Premises or upon other portions of the Project or
from other sources or places and regardless of whether the cause of such damage
or injury or the means of repairing the same is inaccessible to Tenant. Landlord

                                       20
<PAGE>

shall not be liable to Tenant for any damages arising from any act or neglect of
any other tenant of the building.

     Tenant acknowledges that Landlord's election to provide mechanical
surveillance or to post security personnel in the Project is solely within
Landlord's discretion; Landlord shall have no liability in connection with the
decision whether or not to provide such services and Tenant hereby waives all
claims based thereon.  Notwithstanding the foregoing, -Landlord shall, during
the initial Term hereof, maintain a security guard at the Project twenty-four
(24) hours per day, seven (7) days per week.  Landlord shall not be liable for
losses due to theft, vandalism, or like causes.

                                  ARTICLE 14

                                   INSURANCE
                                   ---------

     (a)  Tenant's Insurance. Tenant, shall at all times during the Term of this
          ------------------
Lease, and at its own cost and expense, procure and continue in force the
following insurance coverage: (i) Commercial General Liability Insurance with a
combined single limit for bodily injury and property damages of not less than
Two Million Dollars ($2,000,000) per occurrence and Three Million Dollars
($3,000,000) in the annual aggregate, including products liability coverage if
applicable, covering the insuring provisions of this Lease and the performance
of Tenant of the indemnity and exemption of Landlord from liability agreements
set forth in Article 13 hereof-, (ii) a policy of standard fire, extended
coverage and special extended coverage insurance (all risks), including a
vandalism and malicious mischief endorsement, sprinkler leakage coverage and
earthquake sprinkler leakage where sprinklers are provided in an amount equal to
the full replacement value new without deduction for depreciation of all (A)
Tenant Improvements, Alterations, fixtures and other improvements in the
Premises and (B) trade fixtures, furniture, equipment and other personal
property installed by or at the expense of Tenant; (iii) Worker's Compensation
coverage as required by law; and (iv) business interruption, loss of income and
extra expense insurance covering failure of Tenant's telecommunications
equipment and covering all other perils, failures or interruptions. Tenant shall
carry and maintain during the entire Lease Term (including any option periods,
if applicable), at Tenant's sole cost and expense, increased amounts of the
insurance required to be carried by Tenant pursuant to this Article 14 and such
other reasonable types of insurance coverage and in such reasonable amounts
covering the Premises and Tenant's operations therein, as may be reasonably
required by Landlord.

     (b)  Form of Policies. The aforementioned minimum limits of policies and
          ----------------
Tenant's procurement and maintenance thereof shall in no event limit the
liability of Tenant hereunder. The Commercial General Liability Insurance policy
shall name Landlord, Landlord's property manager, Landlord's lender(s) and such
other persons or firms as Landlord specifies from time to time, as additional
insureds with an appropriate endorsement to the policy(s). All such insurance
policies carried by Tenant shall be with companies having a rating of not less
than A-VIII in Best's Insurance Guide. Tenant shall furnish to Landlord, from
the insurance companies, or cause the insurance companies to furnish,
certificates of coverage. No such policy shall be cancelable or subject to
reduction of coverage or other modification or cancellation except after thirty
(30) days prior written notice to Landlord by the insurer. All such policies
shall be

                                       21
<PAGE>

endorsed to agree that Tenant's policy is primary and that any insurance carried
by Landlord is excess and not contributing with any Tenant insurance requirement
hereunder. Tenant shall, at least twenty (20) days prior to the expiration of
such policies, furnish Landlord with renewals or binders. Tenant agrees that if
Tenant does not take out and maintain such insurance or furnish Landlord with
renewals or binders, Landlord may (but shall not be required to) procure said
insurance on Tenant's behalf and charge Tenant the cost thereof, which amount
shall be payable by Tenant upon demand with interest (at the rate set forth in
Section 20(e) below) from the date such sums are extended. Tenant shall have the
right to provide such insurance coverage pursuant to blanket policies obtained
by Tenant, provided such blanket policies expressly afford coverage to the
Premises and to Tenant as required by this Lease.

     (c)  Landlord's Insurance. Landlord shall, as a cost to be included in
          --------------------
Operating Costs, procure and maintain at all times during the Term of this
Lease, a policy or policies of insurance covering loss or damage to the Project
in the amount of the full replacement costs without deduction for depreciation
thereof (exclusive of Tenant's trade fixtures, inventory, personal property and
equipment), providing protection against all perils included within the
classification of fire and extended coverage, vandalism coverage and malicious
mischief, sprinkler leakage, water damage, and special extended coverage on
building. Additionally, Landlord may (but shall not be required to) carry: (i)
Bodily Injury and Property Damage Liability Insurance and/or Excess Liability
Coverage Insurance; and (ii) Earthquake and/or Flood Damage Insurance; and (iii)
Rental Income Insurance at its election or if required by its lender from time
to time during the Term hereof, in such amounts and with such limits as Landlord
or its lender may deem appropriate. However, notwithstanding the foregoing,
Landlord shall either carry, or shall be deemed to have elected to self-insure,
the Bodily Injury and Property Damage Liability Insurance coverage described in
subsection (i) of the immediately preceding sentence, and if Landlord elects to
self-insure any or all of such coverage, Tenant shall be deemed to be in the
same position it would have been in had Landlord actually purchased such
insurance from a third party carrier. The costs of such insurance shall be
included in Operating Costs.

     (d)  Waiver of Subrogation. Landlord and Tenant each agree to have their
          ---------------------
respective insurers issuing the insurance described in Sections 14(a)(ii),
14(a)(iv) and the first sentence of Section 14(c) waive any rights of
subrogation that such companies may have against the other party. Tenant hereby
waives any right that Tenant may have against Landlord and Landlord hereby
waives any right that Landlord may have against Tenant as a result of any loss
or damage to the extent such loss or damage is insurable under such policies.

     (e)  Compliance with Law. Tenant agrees that it will not, at any time,
          -------------------
during the Term of this Lease, carry any stock of goods or do anything in or
about the Premises that will in any way tend to increase the insurance rates
upon the Project. Tenant agrees to pay Landlord forthwith upon demand the amount
of any increase in premiums for insurance against loss by fire that may be
charged during the Term of this Lease on the amount of insurance to be carried
by Landlord on the Project resulting from the foregoing, or from Tenant doing
any act in or about said Premises that does so increase the insurance rates,
whether or not Landlord shall have consented to such act on the part of Tenant.
If Tenant installs upon the Premises any electrical equipment which constitutes
an overload of electrical lines of the Premises, Tenant shall at its own cost
and expense in accordance with all other Lease provisions, and subject to the
provisions of Article 9, 10 and 11, hereof, make whatever changes are necessary
to comply with

                                       22
<PAGE>

requirements of the insurance underwriters and any governmental authority having
jurisdiction thereover, but nothing herein contained shall be deemed to
constitute Landlord's consent to such overloading. Tenant shall, at its own
expense, comply with all requirements of the insurance authority having
jurisdiction over the Project necessary for the maintenance of reasonable fire
and extended coverage insurance for the Premises, including without limitation
thereto, the installation of fire extinguishers or an automatic dry chemical
extinguishing system.

                                  ARTICLE 15

                           ASSIGNMENT AND SUBLETTING
                           -------------------------

     Tenant shall have no power to, either voluntarily, involuntarily, by
operation of law or otherwise, sell, assign, transfer or hypothecate this Lease,
or sublet the Premises or any part thereof, or permit the Premises or any part
thereof to be used or occupied by anyone other than Tenant or Tenant's employees
without the prior written consent of Landlord which shall not be unreasonably
withheld or delayed.  Tenant may transfer its interest pursuant to this Lease
only upon the following express conditions, which conditions are agreed by
Landlord and Tenant to be reasonable:

     (a)  That the proposed transferee shall be subject to the prior written
consent of Landlord, which consent will not be unreasonably withheld but,
without limiting the generality of the foregoing, it shall be reasonable for
Landlord to deny such consent if:

          (i)    The use to be made of the Premises by the proposed transferee
is (a) not generally consistent with the character and nature of all other
tenancies in the Project, or (b) a use which conflicts with any so-called
"exclusive" then in favor of another tenant of the Project or any other
buildings which are in the same complex as the Project, or (c) a use which would
be prohibited by any other portion of this Lease (including but not limited to
any Rules and Regulations then in effect);

          (ii)   The financial responsibility of the proposed transferee is not
reasonably satisfactory to Landlord or in any event not at least equal to those
which were possessed by Tenant as of the date of execution of this Lease;

          (iii)  The proposed transferee is either a governmental agency or
instrumentality thereof;

          (iv)   The circumstances described in Section 28(b) below apply; or

          (v)    Either the proposed transferee or any person or entity which
directly or indirectly controls, is controlled by or is under common control
with the proposed transferee is negotiating with Landlord to lease space in the
Project.

     (b)  Whether or not Landlord consents to any such transfer, Tenant shall
pay to Landlord Landlord's then standard processing fee and reasonable
attorneys' fees incurred in connection with the proposed transfer up to the
aggregate sum of $1,000.00;

                                       23
<PAGE>

     (c)  That the proposed transferee shall execute an agreement pursuant to
which it shall agree to perform faithfully and be bound by all of the terms,
covenants, conditions, provisions and agreements of this Lease applicable to
that portion of the Premises so transferred; and

     (d)  That an executed duplicate original of said assignment and assumption
agreement or other transfer on a form reasonably approved by Landlord, shall be
delivered to Landlord within five (5) days after the execution thereof, and that
such transfer shall not be binding upon Landlord until the delivery thereof to
Landlord and the execution and delivery of Landlord's consent thereto.  It shall
be a condition to Landlord's consent to any subleasing, assignment or other
transfer of part or all of Tenant's interest in the Premises (hereinafter
referred to as a "Transfer") that (i) upon Landlord's consent to any Transfer,
Tenant shall pay and continue to pay fifty percent (50%) of any "Transfer
Premium" (defined below), received by Tenant from the transferee; (ii) any
sublessee of part or all of Tenant's interest in the Premises shall agree that
in the event Landlord gives such sublessee notice that Tenant is in default
under this Lease, such sublessee shall thereafter make all sublease or other
payments directly to Landlord, which will be received by Landlord without any
liability whether to honor the sublease or otherwise (except to credit such
payments against sums due under this Lease), and any sublessee shall agree to
attorn to Landlord or its successors and assigns at their request should this
Lease be terminated for any reason, except that in no event shall Landlord or
its successors or assigns be obligated to accept such attornment; (iii) any such
Transfer and consent shall be effected on forms supplied by Landlord and/or its
legal counsel; (iv) Landlord may require that Tenant not then be in default
hereunder in any respect; and (v) Tenant or the proposed subtenant or assignee
(collectively, "Transferee") shall agree to pay Landlord, upon demand, as
additional rent, a sum equal to the additional costs, if any, incurred by
Landlord for maintenance and repair as a result of any change in the nature of
occupancy caused by such subletting or assignment.  "Transfer Premium" shall
mean all rent, additional rent or other consideration payable by a Transferee in
connection with a Transfer in excess of the rent and Additional Rent payable by
Tenant under this Lease during the term of the Transfer and if such Transfer is
less than all of the Premises, the Transfer Premium shall be calculated on a
rentable square foot basis.  Landlord and Tenant hereby acknowledge that any
free rent or rent abatement given to the Transferee shall be considered in
determining the Transfer Premium.  In any event, the Transfer Premium shall be
calculated after deducting the reasonable expenses incurred by Tenant for (1)
any changes, alterations and improvements to the Premises paid for by Tenant in
connection with the Transfer. (2) any other out-of-pocket monetary concessions
provided by Tenant to the Transferee, and (3) any advertising costs, marketing
costs, legal fees or brokerage commissions paid for by Tenant in connection with
the Transfer.  "Transfer Premium" shall also include, but not be limited to, key
money, bonus money or other cash consideration paid by a transferee to Tenant in
connection with such Transfer, and any payment in excess of fair market value
for services rendered by Tenant to the Transferee and any payment in excess of
fair market value for assets, fixtures, inventory, equipment, or furniture
transferred by Tenant to the Transferee in connection with such Transfer.  Any
sale, assignment, hypothecation, transfer or subletting of this Lease which is
not in compliance with the provisions of this Article 15 shall be void and
shall, at the option of Landlord, terminate this Lease.  In no event shall the
consent by Landlord to an assignment or subletting be construed as relieving
Tenant, any assignee, or sublessee from obtaining the express written consent of
Landlord to any further assignment or subletting, or as releasing Tenant from
any liability or obligation hereunder whether or not then accrued and Tenant
shall continue to be fully liable therefor.  No collection or acceptance of rent
by Landlord from any

                                       24
<PAGE>

person other than Tenant shall be deemed a waiver or any provision of this
Article 15 or the acceptance of any assignee or subtenant hereunder, or a
release of Tenant (or of any successor of Tenant or any subtenant).
Notwithstanding anything to the contrary in this Lease, if Tenant or any
proposed Transferee claims that Landlord has unreasonably withheld or delayed
its consent under this Article 15 or otherwise has breached or acted
unreasonably under this Article 15, their sole remedies shall be a declaratory
judgment and an injunction for the relief sought without any monetary damages,
and Tenant hereby waives all other remedies, including, without limitation, any
right at law or equity to terminate this Lease, on its own behalf and, to the
extent permitted under all applicable laws, on behalf of the proposed
Transferee.

     Notwithstanding anything to the contrary contained in this Article 15, an
assignment or subletting of all or a portion of the Premises to an affiliate
("Affiliate") of Tenant (an entity which is controlled by, controls, or is under
common control with, Tenant), shall not be deemed a Transfer under this Article
15, provided that Tenant notifies Landlord. of any such assignment or sublease
and promptly supplies Landlord with any documents or information requested by
Landlord regarding such assignment or sublease or such affiliate, and further
provided that such assignment or sublease is not a subterfuge by Tenant to avoid
its obligations under this Lease.  An assignee of Tenant's entire interest in
this Lease pursuant to the immediately preceding sentence may be referred to
herein as an "Affiliated Assignee."  "Control," as used in this Article 15,
shall mean the ownership, directly or indirectly, of greater than fifty percent
(50%) of the voting securities of, or possession of the right to vote, in the
ordinary direction of its affairs, of greater than fifty percent (50%) of the
voting interest in, an entity.

     Notwithstanding anything to the contrary contained in this Article 15,
Landlord shall have the option, by giving written notice to Tenant within thirty
(30) days after Landlord's receipt of a request for consent to a proposed
Transfer, to terminate this Lease as to the portion of the Premises that is the
subject of the Transfer.  If this Lease ii so terminated with respect to less
than the entire Premises, the Basic Rental and Tenant's Proportionate Share
shall be prorated based on the number of rentable square feet retained by Tenant
as compared to the total number of rentable square feet contained in the
original Premises, and this Lease as so amended shall continue thereafter in
full force and effect, and upon the request of either party, the parties shall
execute written confirmation of the same.  Notwithstanding the foregoing,
Landlord's right to recapture the Premises as set forth above shall not apply to
a sublease of a portion of the Premises which is 5,000 rentable square feet or
less to subcontractor(s) of Tenant; provided that Landlord shall have the right
to recapture such subleased space if (i) the term of such sublease is greater
than two (2) years, or (ii) the sublease is for the entire remaining Term of the
Lease (regardless of whether or not the remaining Term is less then two (2)
years).

                                  ARTICLE 16

                             DAMAGE OR DESTRUCTION
                             ---------------------

     If the Project is damaged by fire or other insured casualty and the
insurance proceeds have been made available therefor by the holder or holders of
any mortgages or deeds of trust covering the Premises or the Project, the damage
shall be repaired by Landlord to the extent such insurance proceeds are
available therefor and provided such repairs can, in Landlord's sole opinion, be
completed within one hundred eighty (180) days after the necessity for repairs
as a

                                       25
<PAGE>

result of such damage becomes known to Landlord without the payment of overtime
or other premiums, and until such repairs are completed rent shall be abated in
proportion to the part of the Premises which is unusable by Tenant in the
conduct of its business (but there shall be no abatement of rent by reason of
any portion of the Premises being unusable for a period equal to one (1) day or
less). However, if the damage is due to the fault or neglect of Tenant, its
employees, agents, contractors, guests, invitees and the like, there shall be no
abatement of rent, unless and to the extent Landlord receives rental income
insurance proceeds. Landlord shall notify Tenant as soon as reasonably possible
after the date Landlord teams of the necessity for repairs as a result of damage
but in any event within sixty (60) days thereafter ("Damage Repair Estimate") of
Landlord's estimated assessment of the period of time in which the repairs will
be completed. Upon the occurrence of any damage to the Premises, Tenant shall
assign to Landlord (or to any party designated by Landlord) all insurance
proceeds payable to Tenant under Section 14(a)(ii)(A) above; provided, however,
that if the cost of repair of improvements within the Premises by Landlord
exceeds the amount of insurance proceeds received by Landlord from Tenant's
insurance carrier, as so assigned by Tenant, such excess costs shall be paid by
Tenant to Landlord prior to Landlord's repair of such damage. If the Damage
Repair Estimate indicates that repairs cannot, in Landlord's opinion, be
completed within one hundred eighty (180) days after the necessity for repairs
as a result of such damage becomes known to Landlord without the payment of
overtime or other premiums, Landlord may, at its option, either (i) make them in
a reasonable time and in such event this Lease shall continue in effect and the
rent (as such term is defined in Article 20(a) hereof) shall be abated, if at
all, in the manner provided in this Article 16, or (ii) elect not to effect such
repairs and instead terminate this Lease, by notifying Tenant in writing of such
termination within sixty (60) days after Landlord learns of the necessity for
repairs as a result of damage, such notice to include a termination date giving
Tenant sixty (60) days to vacate the Premises. In addition, Landlord may elect
to terminate this Lease if the Project shall be damaged by fire or other
casualty or cause, whether or not tile Premises are affected, and the damage is
not fully covered, except for deductible amounts, by Landlord's insurance
policies. However, if Landlord does not elect to terminate this Lease pursuant
to Landlord's termination right as provided above, and the Damage Repair
Estimate indicates that repairs cannot be completed within one hundred eighty
(180) days after being commenced, Tenant may elect, not later than thirty
(30) days after Tenant's receipt of the Damage Repair Estimate, to terminate
this Lease by written notice to Landlord effective as of the date specified in
Tenant's notice. Finally, if the Premises or the Project is damaged to any
substantial extent during the last twelve (12) months of the Term, then
notwithstanding anything contained in this Article 16 to the contrary, Landlord
shall have the option to terminate this Lease by giving written notice to Tenant
of the exercise of such option within sixty (60) days after Landlord learns of
the necessity for repairs as the result of such damage. In the event that the
Premises or the Project is destroyed or damaged to any substantial extent during
the last twelve (12) months of the Lease Term and if such damage shall take
longer than sixty (60) days to repair and if such damage is not the result of
the negligence or willful misconduct of Tenant or Tenant's employees, licensees,
invitees or agents, then notwithstanding anything in this Article 16 to the
contrary, Tenant shall have the option to terminate this Lease by written notice
to Landlord of the exercise of such option within sixty (60) days after Tenant
learns of the necessity for repairs as the result of such damage. A total
destruction of the Project shall automatically terminate this Lease. Except as
provided in this Article 16, there shall be no abatement of rent and no
liability of Landlord by reason of any injury to or interference with Tenant's
business or

                                       26
<PAGE>

property arising from such damage or destruction or the making of any repairs,
alterations or improvements in or to any portion of the Project or the Premises
or in or to fixtures, appurtenances and equipment therein. Tenant understands
that Landlord will not carry insurance of any kind on Tenant's furniture,
furnishings, trade fixtures or equipment, and that Landlord shall not be
obligated to repair any damage thereto or replace the same. Except for proceeds
relating to Tenant's furniture, furnishings, trade fixtures and equipment,
Tenant acknowledges that Tenant shall have no right to any proceeds of insurance
relating to property damage. With respect to any damage which Landlord is
obligated to repair or elects to repair, Tenant, as a material inducement to
Landlord entering into this Lease, irrevocably waives and releases its rights
under the provisions of Sections 1932 and 1933 of the California Civil Code.

                                  ARTICLE 17

                                 SUBORDINATION
                                 -------------

     This Lease is subject and subordinate to all ground or underlying leases,
mortgages and deeds of trust which affect the property or the Project, including
all renewals, modifications, consolidations, replacements and extensions
thereof-, provided, however, if the lessor under any such lease or the holder or
holders of any such mortgage or deed of trust shall advise Landlord that they
desire or require this Lease to be prior and superior thereto, upon written
request of Landlord to Tenant, Tenant agrees to promptly execute, acknowledge
and deliver any and all documents or instruments which Landlord or such lessor,
holder or holders deem necessary or desirable for purposes thereof.  Landlord
shall have the right to cause this Lease to be and become and remain subject and
subordinate to any and all ground or underlying leases, mortgages or deeds of
trust which may hereafter be executed covering the Premises, the Project or the
property or any renewals, modifications, consolidations, replacements or
extensions thereof, for the full amount of all advances made or to be made
thereunder and without regard to the time or character of such advances,
together with interest thereon and subject to all the terms and provisions
thereof; provided, however, that Landlord obtains from the lender or other party
in question a written undertaking in favor of Tenant to the effect that such
lender or other party will not disturb Tenant's right of possession under this
Lease if Tenant is not then or thereafter in breach of any covenant or provision
of this Lease.  Tenant agrees, within ten (10) days after Landlord's written
request therefor, to execute, acknowledge and deliver upon request any and all
documents or instruments requested by Landlord or necessary or proper to
assure the subordination of this Lease to any such mortgages, deed of trust, or
leasehold estates.  Tenant agrees that in the event any proceedings are brought
for the foreclosure of any mortgage or deed of trust or any deed in lieu
thereof, to attorn to the purchaser or any successors thereto upon any such
foreclosure sale or deed in lieu thereof as so requested to do so by such
purchaser and to recognize such purchaser as the lessor under this Lease; Tenant
shall within five (5) days after request execute such further instruments or
assurances as such purchaser may reasonably deem necessary to evidence or
confirm such attornment.  In the event of a foreclosure of any such mortgage or
deed of trust or any other action or proceeding for the enforcement thereof, or
for any sale thereunder, this Lease will not be terminated or extinguished, nor
will the rights of possession of Tenant hereunder be disturbed, if Tenant is not
then in default under this Lease beyond any notice and cure periods.  Tenant
agrees to provide copies of any notices of Landlord's default under this Lease
to any mortgagee or deed of trust beneficiary whose address has been provided to
Tenant and Tenant shall provide such mortgagee or deed of trust

                                       27
<PAGE>

beneficiary a commercially reasonable time after receipt of such notice within
which to cure any such default. Tenant waives the provisions of any current or
future statute, rule or law which may give or purport to give Tenant any right
or election to terminate or otherwise adversely affect this Lease and the
obligations of the Tenant hereunder in the event of any foreclosure proceeding
or sale.

                                  ARTICLE 18

                                EMINENT DOMAIN
                                --------------

     If the whole of the Premises or the Project or so much thereof as to render
the balance unusable by Tenant shall be taken under power of eminent domain, or
is sold, transferred or conveyed in lieu thereof, this Lease shall automatically
terminate as of the date of such condemnation, or as of the date possession is
taken by the condemning authority, at Landlord's option.  No award for any
partial or entire taking shall be apportioned, and Tenant hereby assigns to
Landlord any award which may be made in such taking or condemnation, together
with any and all rights of Tenant now or hereafter arising in or to the same or
any part thereof, provided, however, that nothing contained herein shall be
deemed to give Landlord any interest in or to require Tenant to assign to
Landlord any award made to Tenant for the taking of personal property and trade
mixtures belonging to Tenant and removable by Tenant at the expiration of the
Term hereof as provided hereunder or for the interruption of, or damage to,
Tenant's business or the cost incurred or estimated to be incurred by Tenant for
the relocation of its business to new facilities.  In the event of a partial
taking described in this Article 18, or a sale, transfer or conveyance in lieu
thereof, which does not result in a termination of this Lease, the rent shall be
apportioned according to the ratio that the part of the Premises remaining
useable by Tenant bears to the total area of the Premises.  Notwithstanding
anything in this Article 18, if the Premises. or any material portion thereof,
or any portion of the Project necessary for Tenant's access to, or use and
occupancy of, the Premises, are taken within the last year of the Term, then
Tenant will have the right to terminate this Lease by notice to Landlord within
thirty (30) days after the effective date of the taking, in which case such
termination will be effective on the date specified in Tenant's notice to
Landlord.  Tenant hereby waives any and all rights it might otherwise have
pursuant to Section 1265.130 of the California Code of Civil Procedure.

                                  ARTICLE 19

                                    DEFAULT
                                    -------

     Each of the following acts or omissions of Tenant or of any guarantor of
Tenant's performance hereunder, or occurrences, shall constitute an "Event of
Default":

                                       28
<PAGE>

     (a)  Failure or refusal to pay Basic Rental, Additional Rent or any other
amount to be paid by Tenant to Landlord hereunder within three (3) calendar days
after notice that the same is due or payable hereunder; said three (3) day
period shall be in lieu of, and not in addition to, the notice requirements of
Section 1161 of the California Code of Civil Procedure or any similar or
successor law;

     (b)  Except as set forth in items (a) above and (c) through and including
(f) below, failure to perform or observe any other covenant or condition of this
Lease to be performed or observed within thirty (30) days following written
notice to Tenant of such failure. Such thirty (30) day notice shall be in lieu
of, and not in addition to, any required under Section 1161 of the California
Code of Civil Procedure or any similar or successor law;

     (c)  Abandonment or vacating or failure to accept tender of possession of
the Premises or any significant portion thereof;

     (d)  The taking in execution or by similar process or law (other than by
eminent domain) of the estate hereby created;

     (e)  The filing by Tenant or any guarantor hereunder in any court pursuant
to any statute of a petition in bankruptcy or insolvency or for reorganization
or arrangement for the appointment of a receiver of all or a portion of Tenant's
property; the filing against Tenant or any guarantor hereunder of any such
petition, or the commencement of a proceeding for the appointment of a trustee,
receiver or liquidator for Tenant, or for any guarantor hereunder, or of any of
the property of either, or a proceeding by any governmental authority for the
dissolution or liquidation of Tenant or any guarantor hereunder, if such
proceeding shall not be dismissed or trusteeship discontinued within ninety (90)
days after commencement of such proceeding or the appointment of such trustee or
receiver; or the making by Tenant or any guarantor hereunder of an assignment
for the benefit of creditors. Tenant hereby stipulates to the lifting of the
automatic stay in effect and relief from such stay for Landlord in the event
Tenant files a petition under the United States Bankruptcy laws, for the purpose
of Landlord pursuing its rights and remedies against Tenant and/or a guarantor
of this Lease;

     (f)  Tenant's failure to observe or perform according to the provisions of
Articles 17 or 25 within two (2) business days after notice from Landlord.

                                  ARTICLE 20

                                   REMEDIES
                                   --------

     (a)  Upon the occurrence of an Event of Default under this Lease as
provided in Article 19 hereof, Landlord may exercise all of its remedies as may
be permitted by law, including but not limited to the remedy provided by Section
1951.4 of the California Civil Code, and including without limitation,
terminating this Lease, reentering the Premises and removing

                                       29
<PAGE>

all persons and property therefrom, which property may be stored by Landlord at
a warehouse or elsewhere at the risk, expense and for the account of Tenant. If
Landlord elects to terminate this Lease, Landlord shall be entitled to recover
from Tenant the aggregate of all amounts permitted by law, including but not
limited to (i) the worth at the time of award of the amount of any unpaid rent
which had been earned at the time of such termination; plus (ii) the worth at
the time of award of the amount by which the unpaid rent which would have been
earned after termination until the time of award exceeds the amount of such
rental loss that Tenant proves could have been reasonably avoided; plus (iii)
the worth at the time of award of the amount by which the unpaid rent for the
balance of the Lease Term after the time of award exceeds the amount of such
rental loss that Tenant proves could have been reasonably avoided; plus (iv) any
other amount necessary to compensate Landlord for all the detriment proximately
caused by Tenant's failure to perform its obligations under this Lease or which
in the ordinary course of things would be likely to result therefrom,
specifically including but not limited to, brokerage commissions and advertising
expenses incurred, expenses of remodeling the Premises or any portion thereof
for a new tenant, whether for the same or a different use, and any special
concessions made to obtain a new tenant; and (v) at Landlord's election, such
other amounts in addition to or in lieu of the foregoing as may be permitted
from time to time by applicable law. The term "rent" as used in this Article
20(a) shall be deemed to be and to mean all sums of every nature required to be
paid by Tenant pursuant to the terms of this Lease, whether to Landlord or to
others. As used in items (i) and (ii), above, the "worth at the time of award"
shall be computed by allowing interest at the rate set forth in item (e), below,
but in no case greater than the maximum amount of such interest permitted by
law. As used in item (iii), above, the "worth at Landlord" shall be computed by
discounting such amount at the discount rate of the Federal Reserve Bank of San
Francisco at the time of award plus one percent (1%).

     (b)  Nothing in this Article 20 shall be deemed to affect Landlord's right
to indemnification for liability or liabilities arising prior to the termination
of this Lease for personal injuries or property damage under the indemnification
clause or clauses contained in this Lease.

     (c)  Notwithstanding anything to the contrary set forth herein, Landlord's
re-entry to perform acts of maintenance or preservation of or in connection with
efforts to relet the Premises or any portion thereof, or the appointment of a
receiver upon Landlord's initiative to protect Landlord's interest under this
Lease shall not terminate Tenant's right to possession of the Premises or any
portion thereof and, until Landlord does elect to terminate this Lease, this
Lease shall continue in full force and effect and Landlord may enforce all of
Landlord's rights and remedies hereunder including, without limitation, the
remedy described in California Civil Code Section 1951.4 (lessor may continue
lease in effect after lessee's breach and abandonment and recover rent as it
becomes due, if lessee has the right to sublet or assign, subject only to
reasonable limitations). Accordingly, if Landlord does not elect to terminate
this Lease on account of any default by Tenant, Landlord may, from time to time,
without terminating this Lease, enforce all of its rights and remedies under
this Lease, including the right to recover all rent as it becomes due.

     (d)  All rights, powers and remedies of Landlord hereunder and under any
other agreement now or hereafter in force between Landlord and Tenant shall be
cumulative and not alternative and shall be in addition to all rights, powers
and remedies given to Landlord by law,

                                       30
<PAGE>

and the exercise of one or more rights or remedies shall not impair Landlord's
right to exercise any other right or remedy.

     (e)  Any amount due from Tenant to Landlord (or from Landlord to Tenant)
hereunder which is not paid within five (5) days after notice that such amount
is due shall bear interest at the rate ("Interest Rate") equal to the lower of
eighteen percent (18%) per annum or the maximum lawful rate of interest from the
due date until paid, unless otherwise specifically provided herein, but the
payment of such interest shall not excuse or cure any default by Tenant under
this Lease. In addition to such interest: (i) if Basic Rental is not paid within
ten (10) days after the same is due, a late charge equal to ten percent (10%) of
the amount overdue or $100, whichever is greater, shall be assessed and shall
accrue for each calendar month or part thereof until such rental, including the
late charge, is paid in full, which late charge Tenant hereby agrees is a
reasonable estimate of the damages Landlord shall suffer as a result of Tenant's
late payment and (ii) an additional charge of $25 shall be assessed for any
check given to Landlord by or on behalf of Tenant which is not honored by the
drawee thereof; which damages include Landlord's additional administrative and
other costs associated with such late payment and unsatisfied checks and the
parties agree that it would be impracticable or extremely difficult to fix
Landlord's actual damage in such event. Such charges for interest and late
payments and unsatisfied checks are separate and cumulative and are in addition
to and shall not diminish or represent a substitute for any or all of Landlord's
rights or remedies under any other provision of this Lease.

     (f)  Notwithstanding anything to the contrary set forth in this Lease,
Landlord shall be in default in the performance of any obligation required to be
performed by Landlord pursuant to this Lease if Landlord fails to perform such
obligation within thirty (30) days after the receipt of notice from Tenant
specifying in detail Landlord's failure to perform; provided, however, if the
nature of Landlord's obligation is such that more than thirty (30) days are
required for its performance, then Landlord shall not be in default under this
Lease if it shall commence such performance within such thirty (30) day period
and thereafter diligently pursue the same to completion. Upon any such default
by Landlord under this Lease, Tenant may, except as otherwise specifically
provided in this Lease to the contrary, exercise any of its rights provided at
law or in equity.

                                  ARTICLE 21

                        TRANSFER OF LANDLORD'S INTEREST
                        -------------------------------

     In the event of any transfer or termination of Landlord's interest in the
Premises or the Project by sale, assignment, transfer, foreclosure, deed-in-lieu
of foreclosure or otherwise whether voluntary or involuntary, Landlord shall be
automatically relieved of any and all obligations and liabilities on the part of
Landlord from and after the date of such transfer or termination, including
furthermore without limitation, the obligation of Landlord under Article 4 and
California Civil Code 1950.7 above to return the security deposit, provided said
security deposit is transferred to said transferee and the transferee expressly
assumes in writing all of the obligations and liabilities of Landlord with
respect thereto.  Tenant agrees to attorn to the transferee upon any such
transfer and to recognize such transferee as the lessor under this Lease

                                       31
<PAGE>

and Tenant shall, within five (5) days after request, execute such further
instruments or assurances as such transferee may reasonably deem necessary to
evidence or confirm such attornment.

                                  ARTICLE 22

                                    BROKER
                                    ------

     In connection with this Lease, Tenant warrants and represents that it has
had dealings only with firm(s) set forth in Article 1.H. of the Basic Lease
Provisions and that it knows of no other person or entity who is or might be
entitled to a commission, finders fee or other like payment in connection
herewith and does hereby indemnify and agree to hold Landlord, its agents,
members, partners, representatives, officers, affiliates, shareholders,
employees, successors and assigns harmless from and against any and all loss,
liability and expenses that Landlord may incur should such warranty and
representation prove incorrect, inaccurate or false.

                                  ARTICLE 23

                                    PARKING
                                    -------

     Tenant shall be entitled, commencing on the Rent Commencement Date and
ending at the Expiration Date, to the number of unreserved parking passes set
forth in Section 1(I) of the Basic Lease Provisions, which parking passes shall
pertain to the Project parking facility.  Tenant's unreserved parking shall be
free throughout the initial Lease Term; during the Option Term, the charge for
parking (if any) shall be determined as a component of Market Rent.  However,
Tenant shall be responsible for the full amount of any taxes imposed by any
governmental authority in connection with the renting of such parking passes by
Tenant or the use of the parking facility by Tenant.  In the event Tenant
exercises any expansion rights granted to Tenant in accordance with this Lease,
Tenant's parking allocation shall be increased in proportion to such expansion
space in accordance with the ratio set forth in Section l(l) of the Basic Lease
Provisions.  Tenant's continued right to use the parking passes is conditioned
upon Tenant abiding by all rules and regulations which are prescribed from time
to time for the orderly operation and use of the parking facility where the
parking passes are located, including any sticker or other identification system
established by Landlord, Tenants cooperation in seeing that Tenant's employees
and visitors also comply with such rules and regulations, and Tenant not being
in default under this Lease.  Landlord specifically reserves the right to change
the size. configuration, design, layout and all other aspects of the Project
parking facility at any time and Tenant acknowledges and agrees that Landlord
may, without incurring any liability to Tenant and without any abatement of rent
under this Lease, from time to time, close-off or restrict access to the Project
parking facility for purposes of permitting or facilitating any such
construction, alteration or improvements.  Landlord may delegate its
responsibilities hereunder to a parking operator or a lessee of the parking
facility in which case such parking operator or lessee shall have all the rights
of control attributed hereby to the Landlord.  The parking passes allocated to
Tenant pursuant to this Article 23 are provided to Tenant solely for use by
Tenant's own personnel and such passes may not be transferred, assigned,
subleased or otherwise alienated by

                                       32
<PAGE>

Tenant without Landlord's prior approval. A reasonable amount of visitor parking
shall be available at the Project on a first-come, first-served basis, free
during the initial Lease Term.

                                  ARTICLE 24

                      WAIVER / PERFORMANCE UNDER PROTEST
                      ----------------------------------

     (a)  Waiver. No waiver by Landlord or Tenant of any provision of this Lease
          ------
shall be deemed to be a waiver of any other provision hereof or of any
subsequent breach of the same or any other provision. No provision of this Lease
may be waived by Landlord, except by an instrument in writing executed by
Landlord and Tenant. Landlord's consent to or approval of any act by Tenant
requiring Landlord's consent or approval shall not be deemed to render
unnecessary the obtaining of Landlord's consent to or approval of any subsequent
act of Tenant, whether or not similar to the act so consented to or approved. No
act or thing done by Landlord or Landlord's agents during the Term of this Lease
shall be deemed an acceptance of a surrender of the Premises, and no agreement
to accept such surrender shall be valid unless in writing and signed by
Landlord. Any payment by, or receipt of, an amount less than the total amount
then due hereunder shall be deemed to be in partial payment only thereof and not
a waiver of the balance due or an accord and satisfaction, notwithstanding any
statement or endorsement to the contrary on any check or any other instrument
delivered concurrently therewith or in reference thereto. Accordingly, Landlord
may accept any such amount and negotiate any such check without prejudice to
Landlord's right to recover all balances due and owing and to pursue its other
rights against Tenant under this Lease, regardless of whether Landlord makes any
notation on such instrument of payment or otherwise notifies Tenant that such
acceptance or negotiation is without prejudice to Landlord's rights.

     (b)  Right to Perform Under Protest. If, at any time, a dispute arises
          ------------------------------
regarding any amount or sum of money to be paid by one party to the other under
the provisions hereof, the party against whom the obligation to pay is asserted
shall have the right to make payment "under protest" and any such payment will
not be regarded as a voluntary payment. If it is determined that there was no
legal obligation on the part of the protesting party to pay such sum or any part
thereof, such protesting party will be entitled to recover such sum or so much
thereof as it was not legally required to pay under the provisions of this
Lease, with interest thereon from the date of payment until repayment at the
Interest Rate. If, at any time, a dispute arises between the parties regarding
any work to be performed by either of them under the provisions hereof, the
party against whom the obligation to perform the work is asserted may perform
such work and pay the cost thereof "under protest." The performance of such work
will not be regarded as voluntary performance. If it is determined that there
was no legal obligation on the part of such protesting party to perform the same
or any part thereof, such protesting party will be entitled to recover the cost
of such work or the cost of so much thereof as such protesting party was not
legally required to perform under the provisions of this Lease, with interest
thereon from the date of payment until repayment at the Interest Rate.

     (c)  Required Notice. Whenever a payment is made or work is done "under
          ---------------
protest", as provided in this Article 24, the party doing so before making any
such payment or doing any such work, must notify the other party in writing that
is doing so "under protest".

                                       33
<PAGE>

                                  ARTICLE 25

                             ESTOPPEL CERTIFICATE
                             --------------------

     Tenant shall, at any time and from time to time, upon not less than ten
(10) days' prior written notice from Landlord, execute, acknowledge and deliver
to Landlord a statement in writing certifying the following information, (but
not limited to the following information in the event further information is
requested by Landlord): (i) that this Lease is unmodified and in full force and
effect (or, if modified, stating the nature of such modification and certifying
that this Lease, as modified, is in full force and effect); (ii) the dates to
which the rental and other charges are paid in advance, if any; (iii) the amount
of Tenant's security deposit, if any; and (iv) acknowledging that there are not,
to Tenant's knowledge, any uncured defaults on the part of Landlord hereunder,
and. no events or conditions then in existence which, with the passage of time
or notice or both, would constitute a default on the part of Landlord hereunder,
or specifying such defaults, events or conditions, if any are claimed.  It is
expressly understood and agreed that any such statement may be relied upon by
any prospective purchaser or encumbrancer of all or any portion of the Real
Property.  Tenant's failure to deliver such statement within such time shall
constitute an admission by Tenant that all statements contained therein are true
and correct.  Tenant agrees to execute all documents required in accordance with
this Article 25 within ten days after delivery of said documents. Tenant hereby
irrevocably appoints Landlord as Tenant's attorney-in-fact and in Tenant's name,
place and stead to execute any and all documents described in this Article 25 if
Tenant fails to do so within the specified time period.

                                  ARTICLE 26

                             LIABILITY OF LANDLORD
                             ---------------------

     Notwithstanding anything in this Lease to the contrary, any remedy. of
Tenant for the collection of a judgment (or other judicial process) requiring
the payment of money by Landlord in the event of any default by Landlord
hereunder or any claim, cause of action or obligation, contractual, statutory or
otherwise by Tenant against Landlord concerning, arising out of or relating to
any matter relating to this Lease and all of the covenants and conditions or any
obligations, contractual, statutory, or otherwise set forth herein, shall be
limited solely and exclusively to an amount which is equal to the lesser of (i)
the interest of Landlord in and to the Project (including any applicable rents
and insurance proceeds), and (ii) the interest Landlord would have in the
Project if the Project were encumbered by third party debt in an amount equal to
eighty percent (80%) of the then current value of the Project.  No other
property or assets of Landlord, or any member, officer, director, shareholder,
partner, trustee, agent, servant or employee of Landlord (the "Representative")
shall be subject to levy, execution or other enforcement procedure for the
satisfaction of Tenants remedies under or with respect to this Lease, Landlord's
obligations to Tenant, whether contractual, statutory or otherwise, the
relationship of Landlord and Tenant hereunder, or Tenant's use or occupancy of
the Premises.  Tenant further understands that any liability, duty or obligation
of Landlord to Tenant, shall automatically cease and terminate as of the date
that Landlord or any of Landlord's

                                       34
<PAGE>

Representatives no longer have any right, title or interest in or to the Project
so long as the transferee expressly assumes in writing all of such liabilities,
duties and obligations.

                                  ARTICLE 27

                             INABILITY TO PERFORM
                             --------------------

     This Lease and the obligations of both parties hereunder shall not be
affected or impaired because such party is unable to fulfill any of its
obligations hereunder or is delayed in doing so, if such inability or delay is
caused by reason of any prevention, delay, stoppage due to strikes, lockouts,
acts of God, or any other cause previously, or at such time, beyond the
reasonable control or anticipation of such party (collectively, a "Force
Majeure") and both parties' obligations under this Lease shall be forgiven and
suspended by any such Force Majeure; provided, however, that this Article 27 is
not intended to, and shall not, extend the time period for the payment of any
monetary amounts due (including, without limitation, rent payments from Tenant)
from either party to the other under this Lease nor relieve either party from
their monetary obligations to the other under this Lease.

                                  ARTICLE 28

                                HAZARDOUS WASTE
                                ---------------

     (a)  Neither party shall cause or permit any Hazardous Material (as defined
in Article 28(c) below) to be brought, kept or used in or about the Project by
its agents, employees, or contractors. The offending responsible party shall
indemnify the other party from and against any breach of the obligations stated
in the preceding sentence, and agrees to defend and hold the other party
harmless from and against any and all claims, judgments, damages, penalties,
fines, costs, liabilities, or losses (including, without limitation, diminution
in value of the Project, damages for the loss or restriction or use of rentable
or usable space or of any amenity of the Project, damages arising from any
adverse impact or marketing of space in the Project, and sums paid in settlement
of claims, attorneys' fees, consultant fees, and expert fees) which arise during
or after the Term of this Lease as a result of such breach. This indemnification
by the parties includes, without limitation, costs incurred in connection with
any investigation of site conditions or any cleanup, remedial, removal, or
restoration work required by any federal, state, or local governmental agency or
political subdivision because of Hazardous Material present in the soil or
ground water on or under the Project.

     (b)  It shall not be unreasonable for Landlord to withhold its consent to
any proposed Transfer if (i) the proposed transferee's anticipated use of the
Premises involves the generation, storage, use, treatment, or disposal of
Hazardous Material; (ii) the proposed Transferee has been required by any prior
landlord, lender, or governmental authority to take remedial action in
connection with Hazardous Material contaminating a property if the contamination
resulted from such Transferee's actions or use of the property in question; or
(iii) the proposed Transferee is subject to an enforcement order issued by any
governmental authority in connection with the use, disposal, or storage of a
Hazardous Material.

                                       35
<PAGE>

     (c)  As used herein, the term "Hazardous Material" means any hazardous or
toxic substance, material, or waste which is or becomes regulated by any local
governmental authority, the State of California or the United States Government.
The term "Hazardous Material" includes, without limitation, any material or
substance which is (i) defined as "Hazardous Waste," "Extremely Hazardous
Waste," or "Restricted Hazardous Waste" under Sections 25115, 25117 or 25122.7,
or listed pursuant to Section 25140, of the California Health and Safety Code,
Division 20, Chapter 6.5 (Hazardous Waste Control Law), (ii) defined as a
"Hazardous Substance" under Section 25316 of the California Health and Safety
Code, Division 20, Chapter 6.8 (Carpenter-Presley-Tanner Hazardous Substance
Account Act), (iii) defined as a "Hazardous Material," "Hazardous Substance," or
"Hazardous Waste" under Section 25501 of the California Health and Safety Code,
Division 20, Chapter 6.95 (Hazardous Materials Release Response Plans and
Inventory), (iv) defined as a "Hazardous Substance" under Section 25281 of the
California Health and Safety Code, Division 20, Chapter 6.7 (Underground Storage
of Hazardous Substances), (v) petroleum, (vi) asbestos, (vii) listed under
Article 9 or defined as Hazardous or extremely hazardous pursuant to Article 11
of Title 22 of the California Administrative Code, Division 4, Chapter 20,
(viii) designated as a "Hazardous Substance" pursuant to Section 31 1 of the
Federal Water Pollution Control Act (33 U.S.C. (S) 1317), (ix) defined as a
"Hazardous Waste" pursuant to Section 1004 of the Federal Resource Conservation
and Recovery Act, 42 U.S.C. (S) 6901 et seq. (42 U.S.C. (S) 6903), or (x)
defined as a "Hazardous Substance" pursuant to Section 101 of the Comprehensive
Environmental Response, Compensation and Liability Act, 42 U.S.C. (S) 9601 et
seq. (42 U.S.C. (S) 9601).

     (d)  As used herein, the term "Laws" mean any applicable federal, state or
local laws. ordinances, or regulations relating to any Hazardous Material
affecting the Project, including. without limitation, the laws, ordinances, and
regulations referred to in Article 28(c) above.

                                  ARTICLE 29

                  SURRENDER OF PREMISES; REMOVAL OF PROPERTY
                  ------------------------------------------

     (a)  The voluntary or other surrender of this Lease by Tenant to Landlord,
or a mutual termination hereof, shall not work a merger, and shall at the option
of Landlord, operate as an assignment to it of any or all subleases or
subtenancies affecting the Premises.

     (b)  Upon the expiration of the Term of this Lease, or upon any earlier
termination of this Lease, Tenant shall quit and surrender possession of the
Premises to Landlord in as good order and condition as the same are now and
hereafter may be improved by Landlord or Tenant, reasonable wear and tear and
repairs which are Landlord's obligation excepted, and shall, without expense to
Landlord, remove or cause to be removed from the Premises all debris and
rubbish, all furniture, equipment, business and trade fixtures, free-standing
cabinet work, moveable partitioning, telephone and data cabling and other
articles of personal property owned by Tenant or installed or placed by Tenant
at its own expense in the Premises, and all similar articles of any other
persons claiming under Tenant unless Landlord exercises its option to have any
subleases or subtenancies assigned to it, and Tenant shall reasonably repair all
damage to the Premises resulting from the installation and removal of such items
to be removed.

                                       36
<PAGE>

     (c)  Whenever Landlord shall reenter the Premises as provided in Article 12
hereof, or as otherwise provided in this Lease, any property of Tenant not
removed by Tenant upon the expiration of the Term of this Lease (or within
forty-eight (48) hours after a termination by reason of Tenant's default), as
provided in this Lease, shall be considered abandoned and Landlord may remove
any or all of such items and dispose of the same in any manner or store the same
in a public warehouse or elsewhere for the account and at the expense and risk
of Tenant, and if Tenant shall fail to pay the cost of storing any such property
after it has been stored for a period of ninety (90) days or more, Landlord may
sell any or all of such property at public or private sale, in such manner and
at such times and places as Landlord, in its sole discretion, may deem proper,
without notice or to demand upon Tenant, for the payment of all or any part of
such charges or the removal of any such property, and shall apply the proceeds
of such sale as follows first, to the cost and expense of such sale, including
reasonable attorneys' fees for services rendered, second, to the payment of the
cost of or charges for storing any such property; third, to the payment of any
other sums of money which may then or thereafter be due to Landlord from Tenant
under any of the terms hereof, and fourth the balance, if any, to Tenant.

     (d)  All fixtures, equipment, leasehold improvements, Alterations and/or
appurtenances attached to or built into the Premises prior to or during the
Term, whether by Landlord or Tenant and whether at the expense of Landlord or
Tenant, or of both, shall be and remain part of the Premises and shall not be
removed by Tenant at the end of the Term unless otherwise expressly provided for
in this Lease or unless such removal is required by Landlord. Such fixtures,
equipment, leasehold improvements, Alterations, additions, improvements and/or
appurtenances shall include but not be limited to: all floor coverings, drapes,
paneling, built-in cabinetry, molding, doors, vaults (including vault doors),
plumbing systems, security systems, electrical systems, lighting systems,
silencing equipment, communication systems (excepting any data communication and
telecommunication equipment, so long as such equipment was not installed by
Landlord at Landlord's expense pursuant to the Tenant Work Letter), all fixtures
and outlets for the systems mentioned above and for all telephone, radio,
telegraph and television purposes, and any special flooring or ceiling
installations.

                                  ARTICLE 30

                                 MISCELLANEOUS
                                 -------------

     (a)  Severability; Entire Agreement. Any provision of this Lease which
          ------------------------------
shall prove to be invalid, void, or illegal shall in no way affect, impair or
invalidate any other provision hereof and such other provisions shall remain in
full force and effect. This Lease and the Exhibits and any Addendum attached
hereto constitute the entire agreement between the parties hereto with respect
to the subject matter hereof, and no prior agreement or understanding pertaining
to any such matter shall be effective for any purpose. No provision of this
Lease may be amended or supplemented except by an agreement in writing signed by
the parties hereto or their successor in interest.

                                       37
<PAGE>

     (b)  Attorneys' Fees; Waiver of Jury Trial.
          -------------------------------------

          (i)    In any action to enforce the terms of this Lease, including,
without limitation, any suit by Landlord for the recovery of rent or possession
of the Premises, the losing party shall pay the successful party a reasonable
sum for attorneys' fees in such suit and such attorneys' fees shall be deemed to
have accrued prior to the commencement of such action and shall be paid whether
or not such action is prosecuted to judgment.

          (ii)   Should Landlord, without fault on Landlord's part, be made a
party to any litigation instituted by Tenant or by any third party against
Tenant, or by or against any person holding under or using the Premises by
license of Tenant, or for the foreclosure of any lien for labor or material
furnished to or for Tenant or any such other person or otherwise arising out of
or resulting from any act or transaction of Tenant or of any such other person,
Tenant covenants to save and hold Landlord harmless from any judgment rendered
against Landlord or the Premises or any part thereof and from all costs and
expenses, including reasonable attorneys' fees incurred by Landlord in
connection with such litigation.

          (iii)  When legal services are rendered by an attorney at law who is
an employee of a party, attorneys' fees incurred by that party shall be deemed
to include an amount based upon the number of hours spent by such employee on
such matters multiplied by an appropriate billing rate determined by taking into
consideration the same factors, including but not limited by, the importance of
the matter, time applied, difficulty and results, as are considered when an
attorney not in the employ of a party is engaged to render such service.

          (iv)   EACH PARTY HEREBY WAIVES ANY RIGHT TO A TRIAL BY JURY IN ANY
ACTION SEEKING SPECIFIC PERFORMANCE OF ANY PROVISION OF THIS LEASE, FOR DAMAGES
FOR ANY BREACH UNDER THIS LEASE, OR OTHERWISE FOR ENFORCEMENT OF ANY RIGHT OR
REMEDY HEREUNDER.

     (c)  Time of Essence. Time is of the essence with respect to the
          ---------------
performance of every provision of this Lease.

     (d)  Headings; Joint and Several. The article headings contained in this
          ---------------------------
Lease are for. convenience only and do not in any way limit or amplify any term
or provision hereof. The terms "Landlord" and "Tenant" as used herein shall
include the plural as well as the singular, the neuter shall include the
masculine and feminine genders and the obligations herein imposed upon Tenant
shall be joint and several as to each of the persons, firms or corporations of
which Tenant may be composed.

     (e)  Reserved Area. Tenant hereby acknowledges and agrees that the exterior
          -------------
walls of the Premises and the area between the finished ceiling of the Premises
and the slab of the floor of the project thereabove have not been demised hereby
and the use thereof together with the right to install, maintain, use, repair
and replace pipes, ducts, conduits and wires leading through, under or above the
Premises in locations which will not materially interfere with Tenants use of
the Premises and serving other parts of the Project are hereby excepted and
reserved unto Landlord.

                                       38
<PAGE>

     (f)  NO OPTION. THE SUBMISSION OF THIS LEASE BY LANDLORD, ITS AGENT OR
          ---------
REPRESENTATIVE FOR EXAMINATION OR EXECUTION BY TENANT DOES NOT CONSTITUTE AN
OPTION OR OFFER TO LEASE THE PREMISES UPON THE TERMS AND CONDITIONS CONTAINED
HEREIN OR A RESERVATION OF THE PREMISES IN FAVOR OF TENANT, IT BEING INTENDED
HEREBY THAT THIS LEASE SHALL ONLY BECOME EFFECTIVE UPON THE EXECUTION HEREOF BY
LANDLORD AND DELIVERY OF A FULLY EXECUTED LEASE TO TENANT.

     (g)  Use of Project Name; Improvements. Tenant shall not be allowed to use
          ---------------------------------
the name, picture or representation of the Project, or words to that effect, in
connection with any business carried on in the Premises or otherwise (except as
Tenant's address) without the prior written consent of Landlord, which consent
shall not be unreasonably withheld or delayed. Notwithstanding the foregoing,
the Original Tenant named in this Lease may, without Landlord's consent, use
such name, picture or representation of the Project in connection with
documentation prepared in connection with an initial public offering. In the
event that Landlord undertakes any additional improvements on the Real Property
including but not limited to new construction or renovation or additions to the
existing improvements, Landlord shall not be liable to Tenant for any noise,
dust, vibration or interference with access to the Premises or disruption in
Tenant's business caused thereby.

     (h)  Rules and Regulations. Tenant shall observe faithfully and comply
          ---------------------
strictly with the Rules and Regulations attached to this Lease as Exhibit "B"
and made a part hereof, and such other Rules and Regulations as Landlord may
from time to time reasonably adopt for the safety, care and cleanliness of the
Project, the facilities thereof, or the preservation of good order therein.
Landlord shall not be liable to Tenant for violation of any such Rules and
Regulations, or for the breach of any covenant or condition in any lease by any
other tenant in the Project. A waiver by Landlord of any Rule or Regulation for
any other tenant shall not constitute nor be deemed a waiver of the Rule or
Regulation for this Tenant.

     (i)  Quiet Possession. Upon Tenant's paying the Basic Rent, Additional Rent
          ----------------
and other sums provided hereunder and observing and performing all of the
covenants, conditions and provisions on Tenant's part to be observed and
performed hereunder, Tenant shall have quiet possession of the Premises for the
entire Term hereof, subject to all of the provisions of this Lease.

     (j)  Rent. All payments required to be made hereunder to Landlord shall be
          ----
deemed to be rent, whether or not described as such.

     (k)  Successors and Assigns. Subject to the provisions of Article 15
          ----------------------
hereof, all of the covenants, conditions and provisions of this Lease shall be
binding upon and shall inure to the benefit of the parties hereto and their
respective heirs, personal representatives,' successors and assigns.

     (l)  Notices. Any notice required or permitted to be given hereunder shall
          -------
be in writing and may be given by personal service evidenced by a signed receipt
or sent by registered. or certified mail, return receipt requested, or via
overnight courier, and shall be effective upon proof of delivery, addressed to
Tenant at the Premises Attention: Paul Madick, general counsel

                                       39
<PAGE>

or to Landlord at the management office for the Project, with a copy to
Landlord, c/o Arden Realty, Inc., 11601 Wilshire Boulevard, Fourth Floor, Los
Angeles, California 90025, Attn: Legal Department. Either party may by notice to
the other specify a different address for notice purposes except that, upon
Tenant's taking possession of the Premises, the Premises shall constitute
Tenant's address for notice purposes. A copy of all notices to be given to
Landlord hereunder shall be concurrently transmitted by Tenant to such party
hereafter designated by notice from Landlord to Tenant. Any notices sent by
Landlord regarding or relating to eviction procedures, including without
limitation three day notices, may be sent by regular mail.

     (m)  Persistent Delinquencies. In the event that Tenant shall be delinquent
          ------------------------
by more than fifteen (15) days in the payment of rent on three (3) separate
occasions in any twelve (12) month period, Landlord shall have the right to
terminate this Lease by thirty (30) days written notice given by Landlord to
Tenant within thirty (30) days of the last such delinquency.

     (n)  Right of Landlord to Perform. All covenants and agreements to be
          ----------------------------
performed by Tenant under any of the terms of this Lease shall be performed by
Tenant at Tenants sole cost and expense and without any abatement of rent except
as may otherwise be expressly provided in this Lease. If Tenant shall fail to
pay any sum of money, other than rent, required to be paid by it hereunder or
shall fail to perform any other act on its part to be performed hereunder, and
such failure shall continue beyond any applicable cure period set forth in this
Lease, Landlord may, but shall not be obligated to, without waiving or releasing
Tenant from any obligations of Tenant, make any such payment or perform any such
other act on Tenants part to be made or performed as is in this Lease provided.
All sums so paid by Landlord and all reasonable incidental costs, together with
interest thereon at the rate of ten percent (10%) per annum from the date of
such payment by Landlord, shall be payable to Landlord on demand and Tenant
covenants to pay any such sums, and Landlord shall have (in addition to any
other right or remedy of Landlord) the same rights and remedies in the event of
the nonpayment thereof by Tenant as in the case of default by Tenant in the
payment of the rent.

     (o)  Access, Changes in Project, Facilities, Name.
          --------------------------------------------

          (i)    Every part of the Project except the inside surfaces of all
walls, windows and doors bounding the Premises (including exterior building
walls, core corridor walls and doors and any core corridor entrance), and any
space in or adjacent to the Premises used for shafts, stacks, pipes, conduits,
fan rooms, ducts, electric or other utilities, sinks or other building
facilities, and the use thereof, as well as access thereto through the Premises
for the purposes of operation, maintenance, decoration and repair, are reserved
to Landlord.

          (ii)   Tenant shall permit Landlord to install, use and maintain
pipes, ducts and conduits within the walls, columns and ceilings of the
Premises.

          (iii)  Landlord reserves the right, without incurring any liability to
Tenant therefor, to make such changes in or to the Project and the fixtures and
equipment thereof, as well as in or to the street entrances, halls, passages,
elevators, stairways and other improvements thereof, as it may deem necessary or
desirable.

                                       40
<PAGE>

          (iv) Landlord may adopt any name for the Project and Landlord reserves
the right to change the name or address of the Project at any time.  Landlord
shall use commercially reasonable efforts to notify Tenant in writing thirty
(30) days prior to any such change.

     (p)  Signing Authority. Each individual executing this Lease on behalf of
          -----------------
Tenant covenants and warrants that he or she is duly authorized to execute and
deliver this Lease on behalf of Tenant in accordance with a duly adopted
resolution of the Board of Directors of said corporation or in accordance with
the By-laws of said corporation. Concurrently with Tenant's execution of this
Lease, Tenant shall provide to Landlord a copy of a resolution of the Board 6f
Directors authorizing the execution of this Lease on behalf of such corporation,
which copy of resolution shall be duly certified by the secretary or an
assistant secretary of the corporation to be a true copy of a resolution duly
adopted by the Board of Directors of said corporation and shall. be in the form
of Exhibit "E" or in some other form reasonably acceptable to Landlord. In the
event Tenant fails to comply with the requirements set forth in this
subparagraph (p), then each individual executing this Lease shall be personally
liable for all of Tenants obligations in this Lease.

     (q)  Identification of Tenant.
          ------------------------

          (i)  If Tenant constitutes more than one person or entity, (A) each of
them shall be jointly and severally liable for the keeping, observing and
performing of all of the terms, covenants, conditions and provisions of this
Lease to be kept, observed and performed by Tenant, (B) the term "Tenant" as
used in this Lease shall mean and include each of them jointly and severally,
and (C) the act of or notice from, or notice or refund to, or the signature of,
any one or more of them, with respect to the tenancy of this Lease, including,
but not limited to, any renewal, extension, expiration, termination or
modification of this Lease, shall be binding upon each and all of the persons or
entities executing this Lease as Tenant with the same force and effect as if
each and all of them had so acted or so given or received such notice or refund
or so signed.

          (ii) If Tenant is a partnership (or is composed of two or more
persons, individually and as co-partners of a partnership) or if Tenant's
interest in this Lease shall be assigned to a partnership (or to two or more
persons, individually and as co-partners of a partnership) pursuant to Article
15 hereof (any such partnership and such persons hereinafter referred to in this
Article 30(q)(ii) as "Partnership Tenant"), the following provisions of this
Lease shall apply to such Partnership Tenant:

               (A)  The liability of each of the parties comprising Partnership
Tenant shall be joint and several.

               (B)  Each of the parties comprising Partnership Tenant hereby
consents in advance to, and agrees to be bound by, any written instrument which
may hereafter be executed, changing, modifying or discharging this Lease, in
whole or in part, or surrendering all or any part of the Premises to the
Landlord, and by notices, demands, requests or other communication which may
hereafter be given, by the individual or individuals authorized to execute this
Lease on behalf of Partnership Tenant under Subparagraph (p) above.

                                       41
<PAGE>

               (C)  Any bills, statements, notices, demands, requests or other
communications given or rendered to Partnership Tenant or to any of the parties
comprising Partnership Tenant shall be deemed given or rendered to Partnership
Tenant and to all such parties and shall be binding upon Partnership Tenant and
all such parties.

               (D)  If Partnership Tenant admits new partners, all or such new
partners shall, by their admission to Partnership Tenant, be deemed to have
assumed performance of all of the terms, covenants and conditions of this Lease
on Tenant's part to be observed and performed.

               (E)  Partnership Tenant shall give prompt notice to Landlord of
the admission of any such new partners, and, upon demand of Landlord, shall
cause each such new partner to execute and deliver to Landlord an agreement in
form satisfactory to Landlord, and each such new partner shall assume
performance of all of the terms, covenants and conditions of this Lease on
Partnership Tenant's part to be observed and performed (but neither Landlord's
failure to request any such agreement nor the failure of any such new partner to
execute or deliver any such agreement to Landlord shall terminate the provisions
of clause (D) of this Article 30(q)(ii) or relieve any such new partner of its
obligations thereunder).

     (r)  Intentionally Deleted.
          ---------------------

     (s)  Survival of Obligations. Subject to the provisions of Articles 21 and
          -----------------------
26 hereof, any obligations of Landlord and Tenant occurring prior to the
expiration or earlier termination of this Lease shall survive such expiration or
earlier termination.

     (t)  Intentionally Deleted.
          ---------------------

     (u)  Governing Law. This Lease shall be governed by. and construed in
          -------------
accordance with the laws of the State of California. No conflicts of law rules
of any state or country (including, without limitation, California conflicts of
law rules) shall be applied to result in the application of any substantive or
procedural laws of any state or country other than California. All
controversies, claims, actions or causes of action arising between the parties
hereto and/or their respective successors and assigns, shall be brought, heard
and adjudicated by the courts of the State of California, with venue in the
County of Los Angeles. Each of the parties hereto hereby consents to personal
jurisdiction by the courts of the State of California in connection with any
such controversy, claim, action or cause of action, and each of the parties
hereto consents to service of process by any means authorized by California law
and consent to the enforcement of any judgment so obtained in the courts of the
State of California on the same terms and conditions as if such controversy,
claim, action or cause of action had been originally heard and adjudicated to a
final judgment in such courts. Each of the parties hereto further acknowledges
that the laws and courts of California were freely and voluntarily chosen to
govern this Lease and to adjudicate any claims or disputes hereunder.

     (v)  Use of Risers and Conduits. Tenant shall have the right to utilize
          --------------------------
twice its proportionate share (based upon the rentable square footage of the
Premises divided by the total rentable square footage of the Project) of space
within any existing risers and conduits within the Project, subject to
Landlord's review and approval of the location of such lines and the plans and

                                       42
<PAGE>

specifications therefor. Notwithstanding the foregoing, Tenant shall be entitled
to install a minimum of six (6) T-1 lines and six (6) IDSN lines within the
existing risers and conduits within the Project, subject to Landlord's review
and approval of such lines and the plans and specifications therefor. Tenant
shall not be charged for the use of such risers and conduits. In addition,
Tenant may install, at Tenant's sole cost and expense pursuant to Article 9
above. additional conduits and risers if needed by Tenant, subject to Landlord's
review and approval of the location of such items and the plans and
specifications therefor.

     (w)  Exhibits and Addendum. The Exhibits and Addendum, if applicable,
          ---------------------
attached hereto are incorporated herein by this reference as if fully set forth
herein.

     (x)  Reasonable Consent. Except for matters for which there is a standard
          ------------------
of consent or approval specifically set forth in this Lease (other than a
reasonableness standard), and except for matters which could affect (i) the
systems and equipment of the Project; (ii) structural aspects of the Project or
(iii) the exterior appearance of the Project, in which case Landlord shall have
the right to act in its sole and absolute discretion (but at all times in good
faith), any time the consent or approval of Landlord or Tenant is required under
this Lease, such consent or approval shall not be unreasonably withheld,
conditioned or delayed.

                                  ARTICLE 31

                               OPTIONS TO EXTEND
                               -----------------

     (a)  Option Rights. Landlord hereby grants the Tenant named in this Lease
          -------------
(the "Original Tenant") two (2) options ("Options") to extend the Lease Term for
the entire Premises for a period of three (3) years each (each, an "Option
Term"), which options shall be exercisable only by written notice delivered by
Tenant to Landlord set forth below. The rights contained in this Article 31
shall be personal to the Original Tenant and may only be exercised by the
Original Tenant (and not any assignee, sublessee or other transferee of the
Original Tenant's interest in this Lease) if the Original Tenant occupies the
entire Premises as of the date of Tenant's Acceptance (as defined in Section 3 1
(c) below). The second Option shall only be exercisable in the event Tenant
exercises its first Option in accordance with this Article 3 1.,

     (b)  Option Rent. The rent payable by Tenant during the Option Term.
          -----------
("Option Rent") shall be equal to the "Market Rent" (defined below), but in no
event shall the Option Rent be less than Tenant is paying under the Lease on the
month immediately preceding the Option Term for Monthly Basic Rental, including
all escalations, Direct Costs, additional rent and other charges. "Market Rent"
shall mean the applicable Monthly Basic Rental, including all escalations,
Direct Costs, additional rent and other charges at which tenants as of the time
of Landlord's "Option Rent Notice" (as defined below), are entering into leases
for non-sublease, non-encumbered, space comparable in size, location and quality
to the Premises in renewal transactions for a term comparable to the Option Term
which comparable space is located in office buildings comparable to the Project
in Torrance, California, taking into consideration market conditions at the time
including the payment or non-payment of tenant improvement allowances (with
reference to the condition of the applicable spaces), brokerage commissions, the
granting of rent abatement, and the amount of base rent, and escalations.

                                       43
<PAGE>

     (c)  Exercise of Options. The Options shall be exercised by Tenant only in
          -------------------
the following manner: (i) Tenant shall not be in default after expiration of
applicable cure periods on the delivery date of the Interest Notice and Tenant's
Acceptance; (ii) Tenant shall deliver written notice ("Interest Notice") to
Landlord not more than nine (9) months nor less than six (6) months prior to the
expiration of the Lease Term or first Option Term (as applicable), stating that
Tenant is interested in exercising the Option, (iii) within fifteen (15)
business days after Landlord's receipt of Tenant's written notice, Landlord
shall deliver notice ("Option Rent Notice") to Tenant setting forth the Option
Rent; and (iv) if Tenant desires to exercise such Option, Tenant shall provide
Landlord Written notice within ten (10) business days after receipt of the
Option Rent Notice ("Tenant's Acceptance") and upon, and concurrent with such
exercise, Tenant may, at its option, object to the Option Rent contained in the
Option Rent Notice. Tenant's failure to deliver the Interest Notice or Tenant's
Acceptance on or before the dates specified above shall be deemed to constitute
Tenant's election not to exercise the Option. If Tenant timely and properly
exercises its Option, the Lease Term shall be extended for the Option Term upon
all of the terms and conditions set forth in this Lease, except that the rent
for the Option Term shall be as indicated in the Option Rent Notice unless
Tenant, concurrently with Tenant's Acceptance, objects to the Option Rent
contained in the Option Rent Notice, in which case the parties shall follow the
procedure and the Option Rent shall be determined, as set forth in Section 31(d)
below.

     (d)  Determination of Market Rent. If Tenant timely and appropriately
          ----------------------------
objects to the Market Rent in Tenant's Acceptance, Landlord and Tenant shall
attempt to agree upon the Market Rent using their best good-faith efforts. If
Landlord and Tenant fail to reach agreement within twenty-one (21) days
following Tenant's Acceptance ("Outside Agreement Date"), then each party shall
make a separate determination of the Market Rent which shall be submitted to
each other and to arbitration in accordance with the following items (i) through
(vii):

          (i)    Landlord and Tenant shall each appoint, within ten (10) days of
the Outside Agreement Date, one arbitrator who shall by profession be a current
real estate broker or appraiser of comparable commercial properties in the
immediate vicinity of the Project, and who has been active in such Field over
the last five (5) years.  The determination of the arbitrators shall be limited
solely to the issue of whether Landlord's or Tenant's submitted Market Rent is
the closest to the actual Market Rent as determined by the arbitrators, taking
into account the requirements of item (b), above.

          (ii)   The two arbitrators so appointed shall within five (5) business
days of the date of the appointment of the last appointed arbitrator agree upon
and appoint a third arbitrator who shall be qualified under the same criteria
set forth hereinabove for qualification of the initial two arbitrators.

          (iii)  The three arbitrators shall within fifteen (15) days of the
appointment of the third arbitrator reach a decision as to whether the parties
shall use Landlord's or Tenant's submitted Market Rent, and shall notify
Landlord and Tenant thereof.

          (iv)   The decision of the majority of the three arbitrators shall be
binding upon Landlord and Tenant.

                                       44
<PAGE>

          (v)   If either Landlord or Tenant fails to appoint an arbitrator
within ten (10) days after the applicable Outside Agreement Date. the arbitrator
appointed by one of them shall reach a decision, notify Landlord and Tenant
thereof, and such arbitrator's decision shall be binding upon Landlord and
Tenant.

          (vi)  If the two arbitrators fail to agree upon and appoint a third
arbitrator, or both parties fail to appoint an arbitrator, then the appointment
of the third arbitrator or any arbitrator shall be dismissed and the matter to
be decided shall be forthwith submitted to arbitration under the provisions of
the American Arbitration Association, but subject to the instruction set forth
in this item (d).

          (vii) The cost of arbitration shall be paid by Landlord and Tenant
equally.

                                  ARTICLE 32

                             RIGHT OF FIRST OFFER
                             --------------------

     Landlord hereby grants to Tenant a right of first offer with respect to all
space on the eighth (8th) and tenth (10th) floors of the Project, Suite 590
(consisting of approximately 4,703 rentable square feet located on the fifth
(5th) floor of the Project) and Suite 700 (consisting of approximately 18,847
rentable square feet located on the seventh (7th) floor of the Project), all as
depicted on Exhibit "A" (collectively, the "First Offer Space").
Notwithstanding the foregoing such first offer right of Tenant shall commence
only following the expiration or earlier termination of (A) any existing lease
pertaining to the First Offer Space, and (B) as to any First Offer Space which
is vacant as of the date of this Lease, the first lease pertaining to any
portion of such First Offer Space entered into by Landlord after the date of
this Lease (collectively, the "Superior Leases"), including any renewal or
extension of such existing or future lease, whether or not such renewal or
extension is pursuant to an express written provision in such lease, and
regardless of whether any such renewal or extension is consummated pursuant to a
lease amendment or a new lease.  Tenant's right of first offer shall be on the
terms and conditions set forth in this Section 32.

          (i)  Procedure for Offer.  Landlord shall notify Tenant (the "First
               -------------
Offer Notice") from time to time when Landlord determines that Landlord shall
commence the marketing of any First Offer Space because such space shall become
available for lease to third parties.  The First Offer Notice shall describe the
space so offered to Tenant and shall set forth Landlord's proposed economic
terms and conditions applicable to Tenant's lease of such space (collectively,
the "Economic Terms").  Notwithstanding the foregoing, Landlord's obligation to
deliver the First Offer Notice shall not apply during the last eight (8) months
of the initial Lease Term or first Option Term unless Tenant has delivered an
Interest Notice to Landlord pursuant to Section 31(c) above nor shall Landlord
be obligated to deliver the First Offer Notice during the last rive (5) months
of the initial Lease Term or first Option Term unless Tenant has timely
delivered Tenant's Acceptance to Landlord pursuant to Section 31(c) above.

          (ii) Procedure for Acceptance.  If Tenant wishes to exercise Tenant's
               ------------------------
right of first offer with respect to the space described in the First Offer
Notice then within five (5) business

                                       45
<PAGE>

days after delivery of the First Offer Notice to Tenant, Tenant shall deliver
notice to Landlord of Tenant's intention to exercise its right of first offer
with respect to the entire Space described in the First Offer Notice. If
concurrently with Tenant's exercise of the first offer right, Tenant notifies
Landlord that it does not accept the Economic Terms set forth in the First Offer
Notice, Landlord and Tenant shall, for a period of fifteen (15) days after
Tenant's exercise, negotiate in good faith to reach agreement as to such
Economic Terms. If Tenant does not so notify Landlord that it does not accept
the Economic Terms set forth in the First Offer Notice concurrently with
Tenant's exercise of the first offer right, the Economic Terms shall be as set
forth in the First Offer Notice. In addition, if Tenant does not exercise its
right of first offer within the five (5) business day period, or, if Tenant
exercises its first offer right but timely objects to Landlord's determination
of the Economic Terms and if Landlord and Tenant are unable to reach agreement
on such Economic Terms within said fifteen (15) day period, then Landlord shall
be free to lease the space described in the First Offer Notice to anyone to whom
Landlord desires; provided, however, that if Landlord intends to enter into a
lease upon Economic Terms which are more favorable to a third (3rd) party tenant
than those Economic Terms proposed by Landlord in the First Offer Notice,
Landlord shall first deliver written notice to Tenant ("Second Chance Notice")
providing Tenant with the opportunity to lease the First Offer Space on such
more favorable Economic Terms. Tenant's failure to elect to lease the First
Offer Space upon such more favorable Economic Terms by written notice to
Landlord within three (3) business days after Tenant's receipt of such Second
Chance Notice from Landlord shall be deemed to constitute Tenant's election not
to lease such space upon such more favorable Economic Terms, in which case
Landlord shall be entitled to lease such space to any third (3rd) party on terms
no more favorable to the third (3rd) party than those set forth in the Second
Chance Notice. If Landlord does lease such First Offer Space to a third (3rd)
party tenant pursuant to the terms and conditions of this Section 32(ii) above,
Tenant shall have no further right to lease such First Offer Space until the
expiration or earlier termination of such third (3rd) party lease including any
renewal or extension of such third (3rd) party lease. Notwithstanding anything
to the contrary contained herein, Tenant must elect to exercise its right of
first offer, if at all, with respect to all of the space offered by Landlord to
Tenant at any particular time, and Tenant may not elect to lease only a portion
thereof.

          (iii)  Lease of First Offer Space.  If Tenant timely exercises
                 --------------------------
Tenant's right to lease the First Offer Space as set forth herein, Landlord and
Tenant shall execute an amendment adding such First Offer Space to this Lease
upon the same non-economic terms and conditions as applicable to the initial
Premises, and the economic terms and conditions as provided in this Section 32.
Tenant shall commence payment of rent for the First Offer Space and the Lease
Term of the First Offer Space shall commence upon the date of delivery of such
space to Tenant.  The Lease Term for the First Offer Space shall expire co-
terminously with Tenants lease of the initial Premises.

          (iv)   No Defaults.  The rights contained in this Section 32 shall be
                 -----------
personal to the Original Tenant, and may only be exercised by the Original
Tenant (and not any assignee, sublessee or other transferee of the Original
Tenant's interest in this Lease) if Tenant occupies the entire Premises as of
the date of the First Offer Notice.  Tenant shall not have the right to lease
First Offer Space as provided in this Section 32 if, as of the date of the First
Offer Notice, or, at Landlord's option, as of the scheduled date of delivery of
such First Offer Space to Tenant.

                                       46
<PAGE>

Tenant is in default under this Lease or Tenant has previously been in default
under this Lease more than once.

          (v)  Brokerage Commission. In the event Tenant leases additional space
               --------------------
in the Project during the initial Lease Term, and Fred Kaplan is, at the time of
such expansion, a licensed and practicing broker with The Everest Group, Inc.,
then Landlord shall pay The Everest Group, Inc. a commission of two percent (2%)
of the Monthly Basic Rental payable in connection with such expansion. The
foregoing commission shall be payable in two (2) installments, namely, one-half
(1/2) on the mutual execution of a definitive written agreement binding upon
both parties and the balance upon occupancy by the Tenant of the space which is
subject to the transaction in question. So long as Fred Kaplan is, at the time
of such expansion, a licensed and practicing broker with The Everest Group,
Inc., Tenant shall not retain any other broker in connection with such expansion
and in no event shall Landlord be obligated to pay any commission to any other
person or entity in connection with such expansion, and Tenant hereby
indemnities and agrees to hold Landlord, its agents, members, partners,
representatives, officers, affiliates, shareholders, employees, successors and
assigns harmless from and defend Landlord against any and all loss, liability
and expenses arising from any claim by any person or entity other than Fred
Kaplan of The Everest Group, Inc. for the collection of any fee or commission in
connection with such expansion. In the event Fred Kaplan is not at the time of
such expansion a licensed and practicing broker with The Everest Group, Inc.,
Tenant may, but shall not be obligated to retain another broker in connection
with such expansion.

                                  ARTICLE 33

                               SIGNAGE/DIRECTORY
                               -----------------

     Tenant, at Landlord's sole cost and expense, shall have the right to one
(1) line lobby directory during the Lease Term. In addition, provided Tenant
is not in default Tenant shall have the right, at Tenant's sole cost and
expense, to install a Project-standard on the Project's existing "monument" sign
("Tenant's Signage"). Landlord has the right, but not the obligation, to oversee
the installation of Tenant's Signage. `Me cost to maintain and operate, if any,
Tenant's Signage shall be paid for by Tenant. Upon the expiration of the Lease
Term, or other earlier termination of this Lease, Tenant shall be responsible
for any and all costs associated with the removal of Tenant's Signage,
including, but not limited to, the cost to repair and restore the monument to
its original condition, normal wear and tear excepted. At no time during the
initial Lease Term or any applicable Option Term shall Tenant be charged for the
right to install and maintain Tenant's Signage (other than costs to maintain and
operate such signage as provided above).

                                  ARTICLE 34

                               TERMINATION OPTION
                               ------------------

     In the event that as of the fourth (4th) anniversary of the Rent
Commencement Date, Tenant desires to expand the Premises by more than twenty-
five percent (25%) of the rentable

                                       47
<PAGE>

square footage specified in Section l(B) of the Basic Lease Provisions above,
and Landlord is unable to accommodate such expansion in the Project, Tenant
shall have the Termination Option set forth in this Article 34. The Termination
Option shall be exercisable by Tenant provided Tenant fully and completely
satisfies each of the conditions set forth in this Article 34. If the foregoing
conditions are met, Tenant shall have the option ("Termination Option") to
terminate this Lease effective as of the fourth (4th) anniversary date of the
Rent Commencement Date only (the "Termination Date"). In order to exercise the
Termination Option, Tenant must fully and completely satisfy each and every one
of the following conditions: (a) Tenant must give Landlord written notice
("Termination Notice") of its intention to terminate this Lease, which
Termination Notice must be delivered to Landlord at least six (6) months prior
to the Termination Date, (b) at the time of the Termination Notice Tenant shall
not be in default under this Lease after expiration of applicable cure periods,
and (c) concurrently with Tenant's delivery of the Termination Notice to
Landlord, Tenant shall pay to Landlord a termination fee ("Termination Fee")
equal to the sum of the unamortized balance, as of the Termination Date, of (A)
the cost of the Improvements made by Landlord to the Premises pursuant to the
Tenant Work Letter attached as Exhibit "D" to this Lease, (B) the $300,000.00
Cash Grant, and (C) the $219,984.52 in brokerage commissions paid by Landlord in
connection with this Lease. Amortization pursuant to foregoing sentence shall be
calculated on a six (6) year amortization schedule commencing as of the Rent
Commencement Date based upon equal monthly payments of principal and interest,
with interest imputed on the outstanding principal balance at the rate of ten
percent (10%) per annum. Tenant may, from time to time, request in writing that
Landlord give Tenant written notice of Landlord's computation of the Termination
Fee.

                                  ARTICLE 35

                            COMMUNICATION EQUIPMENT
                            -----------------------

     If Tenant desires to use the roof of the Project to install communication
equipment to be used from the Premises, Tenant may so notify Landlord in writing
("Communication Equipment Notice"), which Communication Equipment Notice shall
generally describe the specifications for the equipment desired by Tenant. If at
the time of Landlord's receipt of the Communication Equipment Notice, Landlord
reasonably determines that space is available on the roof of the Project for
such equipment, then subject to all governmental laws, rules and regulations
Tenant and Tenant's contractors (which shall first be reasonably approved by
Landlord shall have the right and access to install, repair, replace, remove,
operate and maintain one (1) so-called "satellite dish" or other similar device,
such as antennae (collectively, "Communication Equipment") no greater than one
(1) meter in diameter, together with all cable, wiring, conduits and related
equipment, for the purpose of receiving and sending radio, television, computer,
telephone or other communication signals, at a location on the roof of the
Project designated by Landlord. Landlord shall have the right to require Tenant
to relocate the Communication Equipment at any time to another location on the
roof of the Project reasonably approved by Tenant. Tenant shall retain
Landlord's designated roofing contractor to make any necessary penetrations and
associated repairs to the roof in order to preserve Landlord's roof warranty.
Tenant's installation and operation of the Communication Equipment shall be
governed by the following terms and conditions:

                                       48
<PAGE>

     (a) Tenants right to install, replace, repair, remove, operate and maintain
the Communication Equipment shall be subject to all governmental laws, rules and
regulations and Landlord makes no representation that such laws, rules and
regulations permit such installation and operation.

     (b) All plans and specifications for the Communication Equipment shall be
subject to Landlord's reasonable approval.

     (c) All costs of installation, operation and maintenance of the
Communication Equipment and any necessary related equipment (including, without
limitation, costs of obtaining any necessary permits and connections to the
Project's electrical system) shall be borne by Tenant.

     (d) It is expressly understood that Landlord retains the right to use the
roof of the Project for any purpose whatsoever provided that Landlord shall not
unduly interfere with Tenant's use of the Communication Equipment.

     (e) Tenant shall use the Communication Equipment so as not to cause any
interference to other tenants in the Project or with any other tenant's
Communication Equipment, and not to damage the Project or interfere with the
normal operation of the Project.

     (f) Landlord shall not have any obligations with respect to the
Communication Equipment.  Landlord makes no representation that the
Communication Equipment will be able to receive or transmit communication
signals without interference or disturbance (whether or not by reason of the
installation or use of similar equipment by others on the roof of the Project)
and Tenant agrees that Landlord shall not be liable to Tenant therefor.

     (g) Tenant shall (i) be solely responsible for any damage caused as a
result of the Communication Equipment, (ii) promptly pay any tax, license or
permit fees charged pursuant to any laws or regulations in connection with the
installation, maintenance or use of the Communication Equipment and comply with
all precautions and safeguards recommended by all governmental authorities, and
(iii) pay for all necessary repairs, replacements to or maintenance of the
Communication Equipment.

     (h) The Communication Equipment shall remain the sole property of Tenant.
Tenant shall remove the Communication Equipment and related equipment at
Tenant's sole cost and expense upon the expiration or sooner termination of this
Lease or upon the imposition of any governmental law or regulation which may
require removal, and shall repair the Project upon such removal to the extent
required by such work of removal.  If Tenant fails to remove the Communication
Equipment and repair the Project within Fifteen (15) days after the expiration
or earlier termination of this Lease, Landlord may do so at Tenants expense.
The provisions of this Section 35(h) shall survive the expiration or earlier
termination of this Lease.

     (i) The Communication Equipment shall be deemed to constitute a portion of
the Premises for purposes of Articles 13 and 14 of this Lease.

     (j) Commencing upon the date Tenant begins installation of the
Communication Equipment and continuing until the date Tenant removes the
Communication Equipment

                                       49
<PAGE>

pursuant to Section 35(h) above, Tenant shall pay to Landlord, in consideration
of Landlord providing space on the roof of the Project for the Communication
Equipment, Two Hundred Fifty Dollars ($250.00) per month, which amount shall be
deemed to constitute Additional Rent and shall be due and payable in advance on
or before the first day of each month without notice from Landlord.

     IN WITNESS WHEREOF, the parties have executed this Lease, consisting of the
foregoing provisions and Articles, including `all exhibits and other attachments
referenced therein, as of the date first above written.

          "LANDLORD"           ARDEN REALTY LIMITED PARTNERSHIP,
                               a Maryland limited partnership

                               By:  ARDEN REALTY, INC.,
                                    a Maryland corporation
                                    its:  Sole General Partner

                                    By: /s/ VICTOR J. COLEMAN
                                        ______________________________________
                                        VICTOR J. COLEMAN
                                        Its: President and COO

                                    By: /s/ ANDREW J. SOBEL
                                        ______________________________________

                                        Its: Exec. VP. and Assistant Secretary
                                             _________________________________

          "TENANT"                 DESKTALK SYSTEMS, INC,
                                   a California corporation

                                       50
<PAGE>

                                        By:  /s/ PAUL MADICK
                                            ______________________________

                                        Print Name:  Paul Madick
                                                    ______________________

                                              Title:  General Counsel
                                                     _____________________

                                        By:  /s/ DAVID WOODALL
                                            ______________________________

                                        Print Name:  David Woodall
                                                    ______________________

                                              Title:  President & CEO
                                                     _____________________

                                       51
<PAGE>

                                  EXHIBIT "A"
                                  -----------

                         PREMISES AND FIRST OFFER SPACE
                         ------------------------------

                           [Floorplan appears here]

                                  EXHIBIT "A"
                                  -----------

                                      -1-
<PAGE>

                               FIRST OFFER SPACE
                               -----------------

                           [FLOOR PLAN APPEARS HERE]

                                  EXHIBIT "A"
                                  -----------

                                      -2-
<PAGE>

                               FIRST OFFER SPACE
                               -----------------

                           [FLOORPLAN APPEARS HERE]
                           ------------------------

                                  EXHIBIT "A"
                                  -----------

                                      -3-
<PAGE>

                               FIRST OFFER SPACE
                               -----------------

                           [FLOORPLAN APPEARS HERE]
                           ------------------------

                                  EXHIBIT "A"
                                  -----------

                                      -4-
<PAGE>

                               FIRST OFFER SPACE
                               -----------------

                           [FLOORPLAN APPEARS HERE]
                           ------------------------

                                  EXHIBIT "A"
                                  -----------

                                      -5-
<PAGE>

                                  EXHIBIT "B"
                                  -----------

                             RULES AND REGULATIONS
                             ---------------------

     1.  No sign, advertisement or notice shall be displayed, printed or affixed
on or to the Premises or to the outside or inside of the Project or so as to be
visible from outside the Premises or Project without Landlord's prior written
consent. Landlord shall have the right to remove any non-improved sign,
advertisement or notice, without notice to and at the reasonable expense of
Tenant and Landlord shall not be liable in damages for such removal. All
approved signs or advertisements on doors and walls shall be printed, painted,
affixed or inscribed at the expense of Tenant by Landlord or by a person
selected by Landlord and in a mariner and style acceptable to Landlord.

     2.  Tenant shall not obtain for use on the Premises ice, waxing, cleaning,
interior glass polishing, rubbish removal, towel or other similar services, or
accept barbering or bootblackining, coffee cart services, milk, soft drinks or
other like services on the Premises, except from persons authorized by Landlord
and at the hours and under regulations fixed by Landlord.  No vending machines
or machines of any description shall be installed, maintained or operated upon
the Premises without Landlord's prior written consent.

     3.  The sidewalks, halls, passages, exits, entrances, elevators and
stairways shall not be obstructed by Tenant or used for any purpose other than
for ingress and egress from Tenant's Premises. Under no circumstances is trash
to be stored in the corridors. Notice must be given to Landlord for any large
deliveries. Furniture, freight and other large or heavy articles, and all other
deliveries may be brought into the Project only at times and in the manner
designated by Landlord, and always at Tenant's sole responsibility and risk.
Tenant shall not be charged for use of the freight elevators during normal
business hours or occasional use of such freight elevators either before or
after normal business hours. Notwithstanding the foregoing, in the event
Tenant's before or after hours use of the freight elevators becomes excessive,
as determined by Landlord in its reasonable discretion, then Landlord may impose
reasonable charges for use of freight elevators after or before normal business
hours. All damage done to the Project by moving or maintaining such furniture,
freight or articles shall be repaired by Landlord at Tenant's expense. Tenant
shall not take or permit to be taken in or out of entrances or passenger
elevators of the Project, any item normally taken, or which Landlord otherwise
reasonably requires to be taken, in or out through service doors or on freight
elevators. Tenant shall move all supplies, furniture and equipment as soon as
received directly to the Premises, and shall move all waste that is at any time
being taken from the Premises directly to the areas designated for disposal.

     4.  Toilet rooms, toilets, urinals, wash bowls and other apparatus shall
not be used for any purpose other than for which they were constructed and no
foreign substance of any kind whatsoever shall be thrown therein.

     5.  Tenant shall not overload the floor of the Premises or mark, drive
nails, screw or drill into the partitions (except in connection with normal
decoration of the Premises), ceilings or floor or in any way deface the
Premises. Tenant shall not place typed, handwritten or computer generated signs
in the corridors or any other common areas. Should there be a need for signage

                                  EXHIBIT "B"
                                  -----------

                                      -1-
<PAGE>

additional to the Project standard tenant placard, a written request shall be
made to Landlord to obtain approval prior to any installation. All reasonable
costs for said signage shall be Tenant's responsibility.

     6.  In no event shall Tenant place a load upon any floor of the Premises or
portion of any such flooring exceeding the floor load per square foot of area
for which such floor is designed to carry and which is allowed by law, or any
machinery or equipment which shall cause excessive vibration to the Premises or
noticeable vibration to any other part of the Project. Prior to bringing any
heavy sales, vaults, large computers or similarly heavy equipment into the
Project, Tenant shall inform Landlord in writing of the dimensions and weights
thereof and shall obtain Landlord's consent thereto (such consent not to be
unreasonably withheld or delayed). Such consent shall not constitute a
representation or warranty by Landlord that the safe, vault or other equipment
complies, with regard to distribution of weight and/or vibration, with the
provisions of this Rule 6 nor relieve Tenant from responsibility for the
consequences of such noncompliance, and any such safe, vault or other equipment
which Landlord determines to constitute a danger of damage to the Project or a
nuisance to other tenants, either alone or in combination with other heavy
and/or vibrating objects and equipment, shall be promptly removed by Tenant, at
Tenant's cost, upon Landlord's written notice of such determination and demand
for removal thereof.

     7.  Tenant shall not use or keep in the Premises or Project any kerosene,
gasoline or inflammable, explosive or combustible fluid or material, or use any
method of heating or air-conditioning other than that supplied by Landlord.

     8.  Tenant shall not lay linoleum, tile, carpet or other similar floor
covering so that the same shall be affixed to the floor of the Premises in any
manner except as reasonably approved by Landlord.

     9.  Tenant shall not install or use any blinds, shades, awnings or screens
in connection with any window or door of the Premises and shall not use any
drape or window covering facing any exterior glass surface other than the
standard drapes, blinds or other window covering established by Landlord.

     10.  Tenant shall use reasonable efforts to cooperate with Landlord in
obtaining maximum effectiveness of the cooling system by closing window
coverings when the sun's rays fall directly on windows of the Premises.  Tenant
shall not obstruct, alter, or in any way impair the efficient operation of
Landlord's heating, ventilating and air-conditioning system.  Tenant shall not
tamper with or change the setting of any thermostats or control valves.

     11.  The Premises shall not be used for manufacturing or for the storage of
merchandise except as such storage may be incidental to the permitted use of the
Premises.  Tenant shall not, without Landlord's prior written consent, occupy or
permit any portion of the Premises to be occupied or used for the manufacture or
sale of liquor or tobacco in any form, or a barber or manicure shop, or as an
employment bureau.  The Premises shall not be used for lodging or sleeping or
any use inconsistent with other tenancies in comparable office projects.  No
auction shall be conducted on the Premises.

                                  EXHIBIT "B"
                                  -----------

                                      -2-
<PAGE>

     12.  Tenant shall not make, or permit to be made, any unseemly or
disturbing noises, or disturb or interfere with occupants of Project or
neighboring buildings or premises or those having business with it by the use of
any musical instrument, radio, phonographs or unusual noise, or in any other
way.

     13.  No bicycles, vehicles or animals of any kind shall be brought into or
kept in or about the Premises, and no cooking shall be done or permitted by any
tenant in the Premises, except that the preparation of coffee, tea, hot
chocolate and similar items for tenants, their employees and visitors shall be
permitted.  No tenant shall cause or permit any unusual or objectionable odors
to be produced in or permeate from or throughout the Premises.  The foregoing
notwithstanding, Tenant shall have the right to use a microwave and to heat
microwavable items typically heated in an office.  No hot plates, toasters,
toaster ovens or similar open element cooking apparatus shall be permitted in
the Premises.

     14.  The sashes, sash doors, skylights, windows and doors that reflect or
admit light and air into the halls, passageways or other public places in the
Project shall not be covered or obstructed by any tenant, nor shall any bottles,
parcels or other articles be placed on the window sills.

     15.   No additional locks or bolts of any kind shall be placed upon any of
the doors or windows by any tenant, nor shall any changes be made in existing
locks or the mechanisms thereof unless Landlord is First notified thereof, gives
written approval (which approval shall not be unreasonably withheld or delayed),
and is furnished a key therefor. Each tenant must, upon the termination of his
tenancy, give to Landlord all keys and key cards of stores, offices, or toilets
or toilet rooms, either furnished to, or otherwise procured by, such tenant, and
in the event of the loss of any keys so furnished, such tenant shall pay
Landlord the cost of replacing the same or of changing the lock or locks opened
by such lost key if Landlord shall deem it necessary to make such change. If
more than two keys for one lock are desired, Landlord will provide them upon
payment therefor by Tenant. Tenant shall not key or re-key any locks. All locks
shall be keyed by Landlord's locksmith only.

     16.  Landlord shall have the right to prohibit any advertising by any
tenant which, in Landlord's opinion, tends to impair the reputation of the
Project or its desirability as an office building and upon written notice from
Landlord any tenant shall refrain from and discontinue such advertising.

     17.  Landlord reserves the right to control access to the Project by all
persons after reasonable hours of generally recognized business days and at all
hours on Sundays and legal holidays. Each tenant shall be responsible for all
persons for whom it requests after hours access and shall be liable to Landlord
for all acts of such persons. Landlord shall have the right from time to time to
establish reasonable rules pertaining to freight elevator usage, including the
allocation and reservation of such usage for tenants' initial move-in to their
premises, and final departure therefrom.

     18.  Any person employed by any tenant to do janitorial work shall, while
in the Project and outside of the Premises, be subject to and under the control
and direction of the

                                  EXHIBIT "B"
                                  -----------

                                      -3-
<PAGE>

Office of the Project or its designated representative such as security
personnel (but not as an agent or servant of Landlord, and the Tenant shall be
responsible for all acts of such persons).

     19.  For any Premises not consisting of a full floor, all doors opening on
to public corridors shall be kept closed, except when being used for ingress and
egress. Tenant shall cooperate and comply with any reasonable safety or security
programs, including fire drills and air raid drills, and the appointment of
"fire wardens" developed by Landlord for the Project, or required by law. Before
leaving the Premises unattended, Tenant shall close and securely lock all doors
or other means of entry to the Premises and shut off all lights and water
faucets in the Premises.

     20.  The requirements of tenants will be attended to only upon application
to the Office of the Project.

     21.  Canvassing, soliciting and peddling in the Project are prohibited and
each tenant shall cooperate to prevent the same.

     22.  All office equipment of any electrical or mechanical nature shall be
placed by tenants in the Premises in settings approved by Landlord, to absorb or
prevent any vibration, noise or annoyance.

     23.  No air-conditioning unit or other similar apparatus shall be installed
or used by any tenant without the prior written consent of Landlord, which
consent shall not be unreasonably withheld or delayed.  Tenant shall pay the
cost of all electricity used for air-conditioning in the Premises if such
electrical consumption exceeds normal office requirements. regardless of whether
additional apparatus is installed pursuant to the preceding sentence.

     24.  There shall not be used in any space, or in the public halls of the
Project, either by any tenant or others, any hand trucks except those equipped
with rubber tires and side guards.

     25.  All electrical ceiling fixtures hung in offices or spaces along the
perimeter of the Project must be fluorescent and/or of a quality, type, design
and bulb color approved by Landlord. Tenant shall not permit the consumption in
the Premises of more than 2Y2 watts per net usable square foot in the Premises
in respect of office lighting nor shall Tenant permit the consumption in the
Premises of more than 1 1/2 watts per net usable square foot of space in the
Premises in respect of the power outlets therein, at any one time. In the event
that such limits are exceeded, Landlord shall have the right to require Tenant
to remove lighting mixtures and equipment and/or to charge Tenant for the cost
of the additional electricity consumed.

     26.  Parking.
          -------

          (a)  Subject to Articles 9, 16 and IS of the Lease, Tenant shall have
access to its parking twenty-four (24) hours per day, seven (7) days per week,
three hundred sixty-five (365) days per year.

          (b)  Automobiles must be parked entirely within the stall lines on the
floor.

          (c)  All directional signs and arrows must be observed.

                                  EXHIBIT "B"
                                  -----------

                                      -4-
<PAGE>

          (d)  The speed limit shall be 5 miles per hour.

          (e)  Parking is prohibited in areas not striped for parking.

          (f)  Parking cards or any other device or form of identification
supplied by Landlord (or its operator) shall remain the property of Landlord (or
its operator). Such parking identification device must be displayed as requested
and may not be mutilated in any manner. The serial number of the parking
identification device may not be obliterated. Devices are not transferable or
assignable and any device in the possession of an unauthorized holder will be
void. There will be a replacement charge to the Tenant or person designated by
Tenant of $25.00 for loss of any parking card (if applicable). There shall be a
security deposit of $25.00 due at issuance for each card key (if applicable)
issued to Tenant.

          (g)  The monthly rate for parking is payable one (1) month in advance
and must be paid by the third business day of each month.  Failure to do so will
automatically cancel parking privileges and a charge at the prevailing daily
rate will be due. No deductions or allowances from the monthly rate will be made
for days parking does not use the parking facilities.

          (h)  If there is a charge for visitor parking during the Option Term
as provided in, and subject to, Article 23 of the Lease, Tenant may validate
visitor parking by such method or methods as the Landlord may approve, at the
validation rate from time to time generally applicable to visitor parking.

          (i)  Landlord (and its operator) may refuse to permit any person who
violates the within rules to park in the garage, and any violation of the rules
shall subject the automobile to removal from the garage at the parker's expense.
In either of said events, Landlord (or its operator) shall refund a prorata
portion of the current monthly parking rate and the sticker or any other form of
identification supplied by Landlord (or its operator) will be returned to
Landlord (or its operator).

          (j)  Garage managers or attendants are not authorized to make or allow
any exceptions to these Rules and Regulations.

          (k)  All responsibility for any loss or damage to automobiles or any
personal property therein is assumed by the parker.

          (1)  Loss or theft of parking identification devices from automobiles
must be reported to the garage manager immediately, and a lost or stolen report
must be filed by the parker at that time.

          (m)  The Parking facilities are for the sole purpose of parking one
automobile per space. Washing, waxing, cleaning or servicing of any vehicles by
the parker or his agents is prohibited.

          (n)  Landlord (and its operator) reserves the right to refuse the
issuance of monthly stickers or other parking identification devices to any
Tenant and/or its employees who

                                  EXHIBIT "B"
                                  -----------

                                      -5-
<PAGE>

refuse to comply with the above Rules and Regulations and all City, State or
Federal ordinances, laws or agreements.

          (o)  Tenant agrees to acquaint all employees with these Rules and
Regulations.

          (p)  No vehicle shall be stored in the garage for a period of more
than one (1) week.

     27.  The Project is a non-smoking Project.  Smoking or carrying lighted
          ------------------------------------
cigars or cigarettes in the Premises or the Project, including the elevators in
the Project, is prohibited.

                                  EXHIBIT "B"
                                  -----------

                                      -6-
<PAGE>

                                  EXHIBIT "C"
                                  -----------

                           NOTICE OF LEASE TERM DATES
                        AND TENANT'S PROPORTIONATE SHARE
                        --------------------------------

TO:  ____________________              ____________________
_________________________
_________________________

RE:  Lease dated ________________, 1999, between _______________________________
     __________________________________________________________ ("Landlord"),
     and ________________________________________________ ("Tenant"), concerning
     Suite ____________, located at _________________________________.

Ladies and Gentlemen:

     In accordance with the Lease, Landlord wishes to advise and/or confirm the
following:

     1.  That the Premises have been accepted herewith by the Tenant as being
substantially complete in accordance with the Lease and that there is no
deficiency in construction.

     2.  That the Tenant has taken possession of the Premises and acknowledges
that under the provisions of the Lease the Term of said Lease shall commence as
of _________ for a term of _________________________ ending on ________________.

     3.  That in accordance with the Lease, Basic Rental commenced to accrue on
_____________________.

     4.  If the Rent Commencement Date of the Lease is other than the first day
of the month, the first billing will contain a prorata adjustment.  Each billing
thereafter shall be for the full amount of the monthly installment as provided
for in said Lease.

     5.  Rent is due and payable in advance on the first day of each and every
month during the Term of said Lease.  Your Tent checks should be made payable to
at _____________________ at _________________________________.

     6.  The exact number of rentable square feet within the Premises is _______
square feet.

                                  EXHIBIT "C"
                                  -----------

                                      -1-
<PAGE>

     7.  Tenant's Proportionate Share. as adjusted based upon the "act number of
rentable square feet within the Premises is _____%.

AGREED AND ACCEPTED:

TENANT:

_________________________
a________________________

By: _____________________
Its: ____________________

                                  EXHIBIT ONLY
                       ***DO NOT SIGN -- INITIAL ONLY***

                                  EXHIBIT "C"
                                  -----------

                                      -2-
<PAGE>

                                  EXHIBIT "D"
                                  -----------

                               TENANT WORK LETTER
                               ------------------

     This Tenant Work Letter shall set forth the terms and conditions relating
to the renovation of the tenant improvements in the Premises.  This Tenant Work
Letter is essentially organized chronologically and addresses the issues of the
construction of the Premises, in sequence, as such issues will arise.

                                   SECTION 2
                                   ---------

                     CONSTRUCTION DRAWINGS FOR THE PREMISES
                     --------------------------------------

     Landlord shall, at Landlord's sole cost and expense (subject to Section 2
below) construct the improvements in the Premises (the "Improvements") pursuant
to those mutually acceptable' "tum-key" plans and specifications for the
Premises prepared by Schlemmer + Kamus and dated as of July 27, 1999
(collectively, the "Plans"). In addition, Landlord shall provide Tenant with a
cash payment ("Cash Grant") in an amount equal to Three Hundred Thousand Dollars
($300,000.00) for Tenant's unrestricted use. The Cash Grant shall be paid to
Tenant within ten (10) days after the Rent Commencement Date. Unless
specifically noted to the contrary on the Plans, the Improvements shall be
constructed using Project-standard quantities, specifications and materials as
determined by Landlord. If any specification(s) shown on the Plans are not
available within the projected eight (8) week construction period for the
Improvements, Landlord shall be entitled to substitute a comparable
specification, subject to Tenants reasonable approval of such substitution,
which approval shall be granted or denied within two (2) business days after
Landlord's request. Based upon the Plans, Landlord shall cause the Architect to
prepare detailed plans and specifications for the Improvements ("Working
Drawings"). Landlord shall then forward the Working Drawings to Tenant for
Tenant's approval. Tenant shall approve or reasonably disapprove any draft of
the Working Drawings within three (3) business days after Tenant's receipt
thereof; provided, however, that (i) Tenant shall not be entitled to disapprove
any portion, component or aspect of the Working Drawings which are consistent
with the Plans unless Tenant agrees to pay for the additional cost resulting
from such change in the Plans as part of the Over-Allowance Amount pursuant to
Section 2 below, and (ii) any disapproval of the Working Drawings by Tenant
shall be accompanied by a detailed written explanation of the reasons for
Tenants disapproval. Failure of Tenant to reasonably disapprove any draft of the
Working Drawings within said three (3) business day period shall be deemed to
constitute Tenant's approval thereof. The Working Drawings, as approved by
Landlord and Tenant, may be referred to herein as the "Approved Working
Drawings." Tenant shall make no changes or modifications to the Plans or the
Approved Working Drawings without the prior written consent of Landlord, which
consent may be withheld in Landlord's sole discretion if such change or
modification would directly or indirectly delay the "Substantial Completion," as
that term is defined in Section 5.1 of this Tenant Work Letter, of the
Improvements in the Premises or increase the cost of designing or constructing
the Improvements.

                                  EXHIBIT "D"
                                  -----------

                                      -1-
<PAGE>

                                   SECTION 2
                                   ---------

                             OVER-ALLOWANCE AMOUNT
                             ---------------------

     In the event that after Tenant's execution of the Lease, any revisions,
changes, or substitutions shall be made to the Plans or the Approved Working
Drawings or the Improvements, any additional costs which arise in connection
with such revisions, changes or substitutions shall be considered to be an
"Over-Allowance Amount." The Over-Allowance Amount shall be paid by Tenant to
Landlord, as Additional Rent, within ten (10) days after Tenant's receipt of
invoice therefor.  The Over-Allowance Amount shall be disbursed by Landlord
prior to the disbursement of any portion of Landlord's contribution to the
construction of the Improvements.

                                   SECTION 3
                                   ---------

                            RETENTION OF CONTRACTOR;
                            ------------------------

                           WARRANTIES AND GUARANTIES
                           -------------------------

     Landlord hereby covenants to obtain industry standard warranties and
guaranties from the Contractor who constructs the Improvements ("Contractor")
with regard to all non-Project standard Improvements installed in the Premises
pursuant to the Plans, including, without limitation, the dishwashers, the
Package Units, the steam shower, accordion wall, hardwood floors, rubber
flooring, floor to ceiling white boards and herculite doors (collectively, the
"Non-Standard Improvements") and hereby assigns to Tenant all such warranties
and guaranties related to such Non-Standard Improvements, and Tenant hereby
waives all claims against Landlord relating to, or arising out of the
construction of, such Non-Standard Improvements.  Notwithstanding the foregoing,
Landlord shall use commercially reasonable efforts to assist Tenant in enforcing
such warranties and guaranties against the Contractor.  With regard to the
remainder of the Improvements, Landlord's repair obligations set forth in
Section 9 of the Lease shall apply.  The Contractor shall be designated and
retained by Landlord to construct the Improvements.

                                   SECTION 4
                                   ---------

                               TENANT'S COVENANTS
                               ------------------

     Tenant shall, at no cost to Tenant, cooperate with Landlord and the space
planner or architect retained by Landlord ("Architect") to cause a Notice of
Completion to be recorded in the office of the Recorder of the County of Los
Angeles in accordance with Section 3093 of the Civil Code of the State of
California or any successor statute upon completion of construction of the
Improvements.

                                  EXHIBIT "D"
                                  -----------

                                      -2-
<PAGE>

                                   SECTION 5
                                   ---------

                         COMPLETION OF THE IMPROVEMENTS
                         ------------------------------

     5.1  Substantial Completion.  For purposes of this Lease, "Substantial
          ----------------------
Completion" of the Improvements in the Premises shall occur as defined in
Section 1(A) of the Lease.

     5.2  Delay of the Substantial Completion of the Premises. except as
          ---------------------------------------------------
provided in this Section 5.2, the Rent Commencement Date shall occur as set
forth in the Lease.  If there shall be a delay or there are delays in the
Substantial Completion of the Improvements in the Premises as a result of the
following (collectively, "Tenant Delays"):

          5.2.1  Tenant's failure to timely approve any matter requiring
Tenant's approval;

          5.2.2  A breach by Tenant of the terms of this Tenant Work Letter or
the Lease;

          5.2.3  Tenant's request for changes in the Plans, Working Drawings or
Approved Working Drawings;

          5.2.4  Intentionally deleted;

          5.2.5  Tenant's requirement for materials, components, finishes or
improvements which are not available in a commercially reasonable time given the
anticipated date of Substantial Completion of the Improvements in the Premises
or which are different from, or not included in, Landlord's standard improvement
package items for the Project ("Long Lead Time Items").  However, Landlord
hereby acknowledges that the Plans, as submitted as of the date of this Lease,
do not contain a requirement for any Long Lead Time Items;

          5.2.6  Changes to the base, shell and core work of the Project
required by the Approved Working Drawings or any changes thereto.  However,
Landlord hereby acknowledges that the Plans, as submitted as of the date of this
Lease, do not contemplate any required changes to the base, shell and core of
the Project; or

          5.2.7  Any other acts or omissions of Tenant, or its agents, or
employees; then notwithstanding anything to the contrary set forth in the Lease
on this Tenant Work Letter and regardless of the actual date of the Substantial
Completion of the Improvements in the Premises, the date of Substantial
Completion thereof shall be deemed to be the date that Substantial Completion
would have occurred if no Tenant Delay or Delays, as set forth above, had
occurred.

                                   SECTION 6
                                   ---------

                                 MISCELLANEOUS
                                 -------------

     6.1  Tenant's Representative.  Tenant has designated Paul Madick as its
          -----------------------
sole representative with respect to the matters set forth in this Tenant Work
Letter, who, until further notice to Landlord, shall have full authority and
responsibility to act on behalf of the Tenant as required in this Tenant Work
Letter.

                                  EXHIBIT "D"
                                  -----------

                                      -3-
<PAGE>

     6.2  Landlord's Representative.  Prior to commencement of construction of
          -------------------------
the Improvements, Landlord shall designate a representative with respect to the
matters set forth in this Tenant Work Letter, who, until further notice to
Tenant, shall have full authority and responsibility to act on behalf of the
Landlord as required in this Tenant Work Letter.

     6.3  Time of the Essence in This Tenant Work Letter.  Unless otherwise
          ----------------------------------------------
indicated, all references herein to a "number of days" shall mean and refer to
calendar days.

     6.4  Tenant's Entry Into the Premises Prior to the Rent Commencement Date.
          --------------------------------------------------------------------
Provided that Tenant and its agents do not unreasonably interfere with
Landlord's work in the Premises, Landlord shall allow Tenant access to the
Premises beginning on the date which Landlord reasonably determines to be two
(2) weeks prior to Substantial Completion of the Improvements for the purpose of
Tenant installing furniture and equipment (including telephones and computers)
in the Premises.  Landlord shall notify Tenant in writing of the date Landlord
estimates to be two (2) weeks prior to the date of Substantial Completion at any
time prior to such date.  Prior to Tenant's entry into the Premises as permitted
by the terms of this Section 6.4, Tenant shall submit a schedule to Landlord
(and Landlord's contractor, if so requested by Landlord), for their approval,
which schedule shall detail the timing and purpose of Tenant's entry.  Tenant
shall hold Landlord harmless from and indemnify, protect and defend Landlord
against any loss or damage to the Project or Premises and against injury to any
persons caused by Tenant's actions pursuant to this Section 6.4.

     6.5  Punch List.  Concurrently with Landlord's delivery of the Premises to
          ----------
Tenant, a representative of Landlord and a representative of Tenant shall
perform a walk-through inspection of the Improvements in the Premises to
identify any "punch list" items (i.e., minor defects or conditions in such
Improvements that do not impair Tenant's ability to utilize the Premises for the
purposes permitted hereunder), which items Landlord shall repair or correct
later than thirty (30) days after the date of such walk-through (unless the
nature of such repair or correction is such that more than thirty (30) days are
required for completion, in which case.  Landlord shall commence such repair or
correction work within such thirty (30) day period and diligently prosecute the
same to completion).

     6.6  Outside Date.  In the event that the Substantial Completion of the
          ------------
Improvements in the Premises has not occurred by the "Outside Date," which shall
be January 31, 2000, as such January 31, 2000 date may be extended by the number
of days of Tenant Delays, by the number of days of "Force Majeure Delays" (as
defined below but not to exceed one hundred twenty (120) days of Force Majeure
Delays), and by the number of "Permit/Material Force Majeure Delays" (as defined
below but not to exceed sixty (60) days of "Permit/Material Force Majeure
Delays) then the sole remedy of Tenant (except as provided in the last sentence
of this Section 6.6) shall be the right to deliver a notice to Landlord (the
"Outside Date Termination Notice") electing to terminate this Lease effective
upon receipt of the Outside Date Termination Notice by Landlord (the "Effective
Date").  Except as provided hereinbelow, the Outside Date Termination Notice
must be delivered by Tenant to Landlord, if at all, not earlier than the Outside
Date and not later than five (5) business days after the Outside Date.  If
Tenant delivers the Outside Date Termination Notice to Landlord, then Landlord
shall have the right to suspend the Effective Date for a period ending thirty
(30) days after the original Effective Date.  In order to suspend the Effective
Date, Landlord must deliver to Tenant, within five (5) business days

                                  EXHIBIT "D"
                                  -----------

                                      -4-
<PAGE>

after receipt of the Outside Date Termination Notice, a certificate of the
Contractor certifying that it is such Contractors best good faith judgment that
Substantial Completion of the Premises will occur within thirty (30) days after
the original Effective Date. If Substantial Completion of the Improvements in
the Premises occurs within said thirty (30) day suspension period, then the
Outside Date Termination Notice shall be of no further force and effect; if,
however, Substantial Completion of the Improvements in the Premises does not
occur within said thirty (30) day suspension period, then this Lease shall
terminate as of the date of expiration of such thirty (30) day period. If prior
to the Outside Date Landlord determines that Substantial Completion of the
Improvements in the Premises will not occur by the Outside Date, Landlord shall
have the right to deliver a written notice to Tenant stating Landlord's opinion
as to the date by which Substantial Completion of the Improvements in the
Premises shall occur and Tenant shall be required, within rive (5) business days
after receipt of such notice, to either deliver the Outside Date Termination
Notice (which will mean that this Lease shall thereupon terminate and shall bi
of no further force and effect) or agree to extend the Outside Date to that date
which is set by Landlord. Failure of Tenant to so respond in writing within said
five (5) business day period shall be deemed to constitute Tenant's agreement to
extend the Outside Date to that date which is set by Landlord. If the Outside
Date is so extended, Landlord's right to request Tenant to elect to either
terminate or further extend the Outside Date shall remain and shall continue to
remain, with each of the notice periods and response periods set forth above,
until the Substantial Completion of the Improvements in the Premises or until
this Lease is terminated. For purposes of this Section 6.6, "Permit/Material
Force Majeure Delays" shall mean and refer to a period of delay or delays
encountered by Landlord affecting the work of construction of the Improvements
because of delays due to excess time in obtaining governmental permits or
approvals beyond the time period normally required to obtain such permits or
approvals for similar space, similarly improved, in comparable office buildings
in Torrance, California; or shortages of material or labor. For purposes of this
Section 6.6, "Force Majeure Delays" shall mean and refer to a period of delay or
delays encountered by Landlord affecting the work of construction of the
Improvements because of delays due to fire, earthquake or other acts of God;
acts of the public enemy; riot; public unrest; insurrection; governmental
regulations of the sales of materials or supplies or the transportation
thereof,, strikes or boycotts; shortages of material or labor or any other cause
beyond the reasonable control of Landlord. In the event Tenant terminates this
Lease pursuant to this Section 6.6, Tenant shall be entitled to a refund of
Tenant's Security Deposit and First Month's Rent paid by Tenant to Landlord
concurrently with Tenant's execution of this Lease. In addition, in the event
Tenant elects to terminate this Lease pursuant to this Section 6.6, to the
extent Landlord, at the time of such termination, has incurred costs less than
Three Hundred Thousand Dollars ($300,000.00) in connection with the preparation
and negotiation of this Lease and construction of the Improvements, including,
without limitation brokerage commissions, attorneys' fees, and costs incurred by
Landlord to design and construct the Improvements, Landlord shall pay to Tenant
an amount, not to exceed One Hundred Thousand Dollars ($100,000.00), equal to
the difference between the amount Landlord has actually incurred and such Three
Hundred Thousand Dollar ($300,000.00) amount.

                                  EXHIBIT "D"
                                  -----------

                                      -5-
<PAGE>

                                  EXHIBIT "E"
                                  -----------

                               CERTIFIED COPY OF
                         BOARD OF DIRECTORS RESOLUTIONS
                                       OF
                             DESKTALK SYSTEMS, INC.

     The undersigned, being the duly elected Corporate Secretary of DeskTalk
Systems, Inc., a California corporation ("Corporation"), hereby certifies that
the following is a true, full and correct copy of the resolutions adopted by the
Corporation by unanimous written consent in lieu of a special meeting of its
Board of Directors, and that said resolutions have not been amended or revoked
as of the date hereof.

     RESOLVED, that the Corporation, is hereby authorized to execute, deliver
and fully perform that certain document entitled Standard Office Lease ("Lease")
by and between the Corporation and Arden Realty Limited Partnership, a Maryland
limited partnership, for the lease of space at 19191 South Vermont Avenue,
Torrance, California.

     RESOLVED FURTHER, that the Corporation is hereby authorized and directed to
make,' execute and deliver any and all, consents, certificates, documents,
instruments, amendments, confirmations, guarantees, papers or writings as may be
required in connection with or in furtherance of the Lease (collectively with
the Lease, the "Documents") or any transactions described therein, and to do any
and all other acts necessary or desirable to effectuate the foregoing
resolution.

     RESOLVED FURTHER, that the following officers acting together:
_______________ as ____________; and ____________ as _____________ are
authorized to execute and deliver the Documents on behalf of the Corporation,
together with any other documents and/or instruments evidencing or ancillary to
the Documents, and in such forms and on such terms as such officer(s) shall
approve, the execution thereof to be conclusive evidence of such approval and to
execute and deliver on behalf of the Corporation all other documents necessary
to effectuate said transaction in conformance with these resolutions.

     Date: __________ 1999                     ______________________________
                                               Corporate Secretary

                                  EXHIBIT ONLY
                       ***DO NOT SIGN -- INITIAL ONLY***

                                  EXHIBIT "E"
                                  -----------

                                      -1-<PAGE>

                                                                   EXHIBIT 10.11

                             DESKTALK SYSTEMS, INC.,
                            A CALIFORNIA CORPORATION

                        1995 INCENTIVE STOCK OPTION PLAN
                            Effective January 4, 1995
                                   As Amended
<PAGE>

                                TABLE OF CONTENTS

                        1995 INCENTIVE STOCK OPTION PLAN
                            Effective January 4, 1995

Paragraph                                                                Page
---------                                                                ----

 1.  PURPOSE ...........................................................   1

 2.  STOCK SUBJECT TO THE PLAN .........................................   1

 3.  ADMINISTRATION ....................................................   1

 4.  EMPLOYEES ELIGIBLE ................................................   2

 5.  OPTION PRICE ......................................................   2

 6.  TERM OF OPTIONS ...................................................   2

 7.  EXERCISE OF OPTIONS ...............................................   2

 8.  NON-TRANSFERABILITY OF OPTIONS ....................................   3

 9.  TERMINATION OF EMPLOYMENT .........................................   3

10.  DISABILITY OF OPTIONEE ............................................   3

11.  DEATH OF OPTIONEE .................................................   3

12.  ADJUSTMENTS UPON CHANGES IN CAPITALIZATION ........................   4

13.  MERGER OR CONSOLIDATION ...........................................   4

14.  VESTING OF RIGHTS UNDER OPTIONS ...................................   4

15.  RESTRICTIVE STOCK PURCHASE AGREEMENT ..............................   4

16.  PREEMPTION BY APPLICABLE LAWS AND REGULATIONS .....................   5

17.  NO RESTRICTION ON CORPORATE ACTION ................................   5

18.  RESTRICTED SECURITIES .............................................   5

19.  NON-ASSIGNABILITY .................................................   5

20.  APPLICATION OF FUNDS ..............................................   6

21.  AMENDMENT AND TERMINATION .........................................   6

22.  EFFECTIVE DATE ....................................................   6

23.  GOVERNING LAW; CONSTRUCTION .......................................   6

24.  TITLES AND HEADINGS ...............................................   6

                                      (ii)
<PAGE>

                             DESKTALK SYSTEMS, INC.

                        1995 INCENTIVE STOCK OPTION PLAN
                            Effective January 4, 1995
                                   As Amended

         DESKTALK SYSTEMS, INC., a California corporation (the "Company"),
hereby formulates and adopts the following 1995 INCENTIVE STOCK OPTION PLAN (the
"1995 Plan") for key employees of the Company.

         1.  PURPOSE.  The purpose of the 1995 Plan is to further the growth and
             -------
development of the Company by encouraging key employees of the Company to obtain
a proprietary interest in the Company through the ownership of Common Stock,
thereby providing such employees with additional incentive to continue in the
employ and to promote the success of the Company, and affording the Company the
means of attracting to its service employees of outstanding quality.

         2.  STOCK SUBJECT TO THE PLAN.
             -------------------------

             2.1   An aggregate of five hundred thousand (500,000) shares of
Common Stock of the Company (the "Common Stock"), subject however, to adjustment
or change pursuant to Paragraph 12 hereof, shall be reserved for issuance upon
the exercise of options which may be granted from time to time in accordance
with 1995 Plan (the "Options"). If, for any reason, an Option shall lapse,
expire or terminate without having been exercised in full, the unpurchased
shares covered thereby shall again be available for the purposes of the 1995
Plan.

             2.2   Subject to Paragraph 2.1 above, the aggregate fair market
value (determined as of the time the option is granted) of the Common Stock
underlying Options granted to any key employee in any calendar year shall not
exceed $100,000 calculated under section 422 (d) of the Internal Revenue Code of
1986, as amended, with respect to such employee.

         3.  ADMINISTRATION. The Board of Directors shall administer the 1995
             --------------
Plan and, subject to the provisions of the 1995 Plan, shall have authority in
its discretion to determine the employees to whom, and the time or times at
which, Options shall be granted and the number of shares to be subject to each
Option. In making such determination, the Board of Directors may take into
account the nature of the services rendered by the respective employees, their
present and potential contributions to the Company's success and such other
factors as the Board of Directors in its sole discretion shall deem relevant.
Subject to the express provisions of the 1995 Plan, the Board of Directors shall
also have the authority to interpret the 1995 Plan, to prescribe, amend and
rescind rules and regulations relating to it, to the term and the terms and
provisions of the respective Option Agreements, which shall be substantially in
the form attached hereto as Exhibit "A", and to make all of the determinations
necessary or advisable for the administration of the 1995 Plan all of which
determinations shall be conclusive and not subject to review.

                                       1
<PAGE>

         4.  EMPLOYEES ELIGIBLE. Options may be granted under the 1995 Plan to
             ------------------
any key employee of the Company. Employees who are also officers or directors of
the Company shall not by reason of such offices be ineligible to receive Options
under the 1995 Plan. No person who would own, directly or indirectly,
immediately after the granting of an Option to him, more than ten percent (10%)
of the total combined voting power or value of all classes or stock of the
Company shall be eligible to receive any options under the 1995 Plan, unless the
exercise price of the Option granted is at least 110 percent of the fair market
value of the stock subject to the Option. An employee receiving an option under
the 1995 Plan is hereinafter referred to as an "Optionee".

         5.  OPTION PRICE. The exercise price per share for each option shall be
             ------------
equal to the fair market value for each share of the common stock of the Company
on the date of grant as determined by the Board of Directors after consideration
of the earnings history, book value and prospects of the Company in light of
market conditions generally. The exercise price as fixed by the Board of
Directors shall be conclusive and not subject to review.

         6.  TERM OF OPTIONS. The term of each Option shall be six years from
             ---------------
the date of grant thereof, but shall be subject to earlier termination as herein
provided. Except as provided in Paragraphs 10 and 11 hereof, no Option shall be
exercisable unless the Optionee shall have been an employee of the Company
continuously from the date of grant to the date of exercise. The Board of
Directors may, in its discretion, accelerate the exercisability of all or part
of an Optionee's Option that is not exercisable as of the date of death,
disability or employment termination of the optionee.

         7.  EXERCISE OF OPTIONS.
             -------------------

             7.1   No Option granted under the 1995 Plan shall be exercisable
until one year from the date of grant. Thereafter each Option shall be
exercisable as follows:

                   7.1.1    At the end of one year from such date of grant,
up to fifty percent (50%) of the total shares subject to such Option; and

                   7.1.2    At the end of two years from the date of grant and
until termination of the option, up to one hundred percent (100%), provided,
however, that no option may be exercised as to less than one hundred (100)
shares at any one time (or the remaining shares then purchasable under the
option if less than one hundred (100) shares).

                                       2
<PAGE>

             7.2   The exercise of an Option shall be contingent upon receipt
from the optionee of a written representation that at the time of such exercise
it is the Optionee's then present intention to acquire the Option shares for
investment and not with a view to distribution or resale thereof, and upon
receipt by the Company of cash, or a certified or bank cashier's check to its
order, for the full purchase price of such shares and such other representations
as may be reasonably required by the Corporation.

             7.3   An Optionee shall have none of the rights of a shareholder
with respect to shares subject to the option until a certificate for such shares
shall have been issued to the Optionee upon the due exercise of the option.

         8.  NON-TRANSFERABILITY OF OPTIONS. No Option granted pursuant to the
             ------------------------------
1995 Plan shall be transferable otherwise than by a Will or the laws of descent
and distribution and an Option may be exercised, during the lifetime of the
optionee, only by the optionee.

         9.  TERMINATION OF EMPLOYMENT. In the event that the employment of an
             -------------------------
Optionee shall be terminated by the Company for any reason, other than by reason
of death or disability, such Option shall forthwith terminate, lapse and expire,
except that within one month from the date of termination the Optionee may
exercise an Option to the extent such Option was exercisable by such Optionee at
the date of termination. So long as an Optionee shall continue to be in the
employ of the Company, his or her Option shall not be affected by any change of
duties or position. Absence on leave approved by the Company shall not be
considered an interruption of employment for any purpose under the 1995 Plan.
Nothing in the 1995 Plan or in any Option Agreement granted hereunder shall
confer upon any optionee any right to continue in the employ of the Company or
interfere in any way with the right of the Company to terminate the employment
of an optionee at any time.

         10. DISABILITY OF OPTIONEE. If the employment of an Optionee shall be
             ----------------------
terminated by reason of disability, such Optionee may, within three months from
the date of termination for such cause, exercise the option to the extent such
Option was exercisable by such Optionee at the date of termination.
Notwithstanding the foregoing, no option may be exercised after four years from
the date of its grant.

         11. DEATH OF OPTIONEE. If an Optionee shall die while in the employ of
             -----------------
the Company, the Option theretofore granted to him or her may be exercised, but
only to the extent such Option was exercisable by the optionee at the date of
death, by the legatees of such optionee under his or her Last Will, or by his or
her personal representative or distributees, within three months from the date
of death, but in no event after four years from the date of the grant of the
Option.

                                       3
<PAGE>

         12. ADJUSTMENTS UPON CHANGES IN CAPITALIZATION. If at any time after
             ------------------------------------------
the date of grant of an Option, the Company shall, by stock dividend, stock
split, reverse stock split, combination, reclassification or exchange or through
merger or consolidation, or otherwise, change its shares of Common Stock into a
different number or kind or class of shares or other securities or property,
then the number of shares covered by such Option and the price per share thereof
shall be proportionally adjusted for any such change by the Board of Directors
whose determination thereon shall be conclusive. In the event that a fraction of
a share results from the foregoing adjustment, the fraction shall be eliminated
and the price per share of the remaining shares subject to the Option adjusted
accordingly.

         13. MERGER OR CONSOLIDATION. After a merger of one or more corporations
             -----------------------
into the Company in which the Company shall survive, or after the consolidation
of the Company and one or more corporations, in which the resulting corporation
remains as an independent corporation, Optionee shall, at the same cost, be
entitled upon exercise of an Option to receive (subject to any required action
by shareholders) such securities of the surviving or resulting corporation as
the Board of Directors of such corporation, in its sole discretion, and without
liability to any person, shall determine to be equivalent, as nearly as
practicable to the nearest whole number and class of shares, to the shares, that
were then subject to such Option, and such shares, after such merger or
consolidation, shall be deemed to be shares of Common Stock for all purposes of
the 1995 Plan.

         14. VESTING OF RIGHTS UNDER OPTIONS. Neither anything contained in the
             -------------------------------
1995 Plan nor in any resolution adopted or to be adopted by the Board of
Directors or the shareholders of the Company shall constitute the vesting of any
rights under any Option. The vesting of such rights shall take place only when a
written option Agreement substantially in the form of the Option Agreement which
is attached to the 1995 Plan as Exhibit "A" shall be duly executed and delivered
by and on behalf of the Company and the employee to whom the option shall be
granted.

         15. RESTRICTIVE STOCK PURCHASE AGREEMENT. Concurrently with the
             ------------------------------------
exercise of an option, the optionee shall execute a Restrictive Stock Purchase
Agreement (the "Agreement") substantially in the form attached as Exhibit "B" to
the 1995 Plan and incorporated herein by this reference. The purpose of the
Restrictive Stock Purchase Agreement is to provide the optionee with an
opportunity to dispose of his or her Common Stock upon the occurrence of certain
events, to provide that such Common Stock shall be transferable only upon
compliance with the terms and conditions of the Agreement and to provide for
continuity of operating, administrative and sales personnel of the Company to be
derived from the opportunity of share ownership.

                                       4
<PAGE>

         16. PREEMPTION BY APPLICABLE LAWS AND REGULATIONS. Anything in the 1995
             ---------------------------------------------
Plan or any agreement entered into pursuant to the 1995 Plan to the contrary
notwithstanding, if, at any time specified herein or therein for the making of
any determination or the issuance or other distribution of shares of Common
Stock, as the case may be, any law, regulation or requirement of any
governmental authority having jurisdiction shall require either the Company or
the Optionee (or the Optionee's beneficiary) , as the case may be, to take any
action in connection with such determination, the shares then to be issued or
distributed, or the making of such determination or payment, as the case may be,
shall be deferred until such action shall have been taken.

         17. NO RESTRICTION ON CORPORATE ACTION. Nothing contained in the 1995
             ----------------------------------
Plan shall be construed to prevent the Company from taking any corporate action
that is deemed by the Board of Directors of the Company to be appropriate or in
the best interest of the Company, whether or not such action would have an
adverse effect on the 1995 Plan or any award made under the 1995 Plan. No
Optionee, beneficiary or other person shall have any claim against the Company
as the result of any such action.

         18. RESTRICTED SECURITIES. All Options and all shares issued pursuant
             ---------------------
to the 1995 Plan shall not be registered under the Federal Securities Laws or
any State Securities Laws, and the Option and all such shares shall be
"Restricted Securities" as defined in Rule 144 of the General Rules and
Regulations of the Securities Act of 1933, as amended (the "Act") and may not be
offered for sale, sold, or otherwise transferred except pursuant to an effective
registration statement under the Act or pursuant to an exemption from
registration under the Act. Accordingly, all certificates evidencing shares
covered by an option shall bear a restrictive legend to this effect.

         19. NON-ASSIGNABILITY. Neither an optionee nor an Optionee's
             -----------------
beneficiary shall have the power or right to sell, exchange, pledge, transfer,
assign or otherwise encumber or dispose of such Optionee's or beneficiary's
interest arising under the 1995 Plan; nor shall such interest be subject to
seizure for the payment of an Optionee's or beneficiary's debts, judgments,
alimony or separate maintenance or be transferable by operation of law in the
event of an Optionee's or beneficiary's bankruptcy or insolvency and to the
extent any such interest arising under the 1995 Plan is awarded to a spouse
pursuant to any marital dissolution proceeding, such interest shall be deemed to
be terminated and forfeited notwithstanding any vesting provisions or other
terms herein or in the agreement evidencing such award.

                                       5
<PAGE>

         20. APPLICATION OF FUNDS. The proceeds received from the sale of shares
             --------------------
pursuant to the 1995 Plan will be added to the working capital of the Company
and be available for general corporate purposes.

         21. AMENDMENT AND TERMINATION. The Board of Directors may from time to
             -------------------------
time and at any time suspend, discontinue or terminate the 1995 Plan and any
awards and grants hereunder. The Board of Directors may amend the 1995 Plan from
time to time in such respects as it may deem advisable.

         22. EFFECTIVE DATE. The 1995 Plan, having been adopted unanimously by
             --------------
the Board of Directors at a meeting duly held on January 4, 1995, shall be
effective as of such date, upon, and subject to, its approval by a majority in
interest of the Common Stock of the Company on or before the first anniversary
of such date. Unless renewed by the Board of Directors, the 1995 Plan shall
terminate on December 31, 2004.

         23. GOVERNING LAW; CONSTRUCTION. All rights and obligations under the
             ---------------------------
1995 Plan shall be governed by, and the 1995 Plan shall be construed in
accordance with, the laws of the State of California without regard to the
principles of conflicts of laws.

         24. TITLES AND HEADINGS. Titles and headings herein are for purposes of
             -------------------
reference only, and shall in no way limit, define or otherwise affect the
meaning or interpretation of any provisions of the 1995 Plan.

                                       6
<PAGE>

                                   Exhibit "A"

                                OPTION AGREEMENT

                             DESKTALK SYSTEMS, INC.,
                            A CALIFORNIA CORPORATION
<PAGE>

                                TABLE OF CONTENTS

                                OPTION AGREEMENT

Paragraph                                                              Page
---------                                                              ----

1.   PURCHASE PRICE.............................................        1

2.   EXERCISE OF OPTION.........................................        1

3.   METHOD OF EXERCISE.........................................        1

4.   TERMINATION OF EMPLOYMENT..................................        2

5.   DEATH OR DISABILITY........................................        2

6.   ADJUSTMENTS TO CAPITALIZATION..............................        2

7.   MERGER OR CONSOLIDATION....................................        2

8.   VESTING OF RIGHTS..........................................        3

9.   NON-TRANSFERABILITY........................................        3

10.  NOTICES...................................................         3

11.  INVESTMENT REPRESENTATION.................................         3

12.  RESTRICTIVE STOCK PURCHASE AGREEMENT......................         3

13.  INUREMENT.................................................         4

14.  GOVERNING LAW.............................................         4

                                       (i)
<PAGE>

                                   Exhibit "A"

                             DESKTALK SYSTEMS, INC.
                                OPTION AGREEMENT

         This Agreement is made and entered into by and between DESKTALK
SYSTEMS, INC., a California corporation (the "Company"), with its principal
office at 19401 South Vermont Avenue, Suite F100, Torrance, California 90502,
and __________________________________________ (the "Optionee"), whose address
is___________________________________________, as of the _________day
of________________________,199__, pursuant to the 1995 Incentive Stock Option
Plan of the Company (the "1995 Plan").

         As an incentive and an inducement to the Optionee to continue in the
employ of the Company, and to devote his or her best efforts to promote the
success of the Company, the Company hereby grants to the Optionee the option to
purchase from the Company, at the times and upon the terms and conditions
hereinafter set forth, an aggregate of shares of common stock (the "Shares") of
the Company (the "Option").

         1.  PURCHASE PRICE. Subject to the terms and conditions hereinafter set
             --------------
forth, the purchase price of the Shares shall be ______________ per share.

         2.  EXERCISE OF OPTION. The Option granted herein may be exercised at
             ------------------
the end of one year from the date hereof as to up to fifty percent (50%) of the
total Shares and at the end of two years from the date hereof and until
termination of the option as to up to one hundred percent (100%) of the total
Shares, provided, however, that this Option may not be exercised as to less than
one hundred shares at any one time (or the remaining shares then purchasable
under the Option if less than one hundred shares) and may not be exercised more
than six years from the date of grant, unless sooner terminated pursuant to the
terms hereof.

         3.  METHOD OF EXERCISE. Subject to prior termination as provided in
             ------------------
Paragraphs 4 and 5 hereof, the Option shall be exercisable as set forth above by
giving ten days written notice of exercise to the Company, which notice shall
specify the number of Shares to be purchased and the purchase price to be paid
therefore, and concurrently making payment to the Company of such purchase price
by certified or bank cashier's check payable to the order of the Company. Upon
such exercise of the Option, the Company shall promptly issue the Shares so
purchased. Such notice of exercise shall be accompanied by the letter required
by Paragraph 11, below.

                                       1
<PAGE>

         4.  TERMINATION OF EMPLOYMENT. If the Optionee's services as an
             -------------------------
employee of the Company shall terminate at any time and for any reason, with or
without cause, the Option, together with all rights, privileges and obligations
hereunder, shall terminate forthwith; provided, however, that for one month
after such date of termination any unexercised portion of the Option which might
have been exercised at the date of such termination may be exercised, in the
manner provided in Paragraph 3 above. Notwithstanding the foregoing, no Option
may be exercised after four years from the date of its grant.

         5.  DEATH OR DISABILITY. If the optionee's services as an employee of
             -------------------
the Company shall terminate by reason of death or disability, the option,
together with all rights, privileges and obligations hereunder, shall terminate
forthwith; provided, however, that for three months after such date of
termination any unexercised portion of the Option which might have been
exercised at the date of such termination may be exercised, in the manner
provided in Paragraph 3 above, by the Optionee or the Optionee's executor or
administrators. Notwithstanding the foregoing, no option may be exercised after
four years from the date of its grant.

         6.  ADJUSTMENTS TO CAPITALIZATION. If at any time after the date
             -----------------------------
hereof, the Company shall, by stock dividend, stock split, reverse stock split,
combination, reclassification or exchange or through merger or consolidation, or
otherwise, change its shares of common stock into a different number or kind or
class of shares or other securities or property, the number of shares
purchasable upon exercise of the Option and the purchase price therefore shall
be proportionally adjusted by the Board of Directors pursuant to the 1995 Plan.

         7.  MERGER OR CONSOLIDATION. After a merger of one or more corporations
             -----------------------
into the Company in which the Company shall survive, or after the consolidation
of the Company and one or more corporations, in which the resulting corporation
remains as an independent corporation, Optionee shall, at the same cost, be
entitled upon exercise of an Option to receive (subject to any required action
by shareholders) such securities of the surviving or resulting corporation as
the Board of Directors of such corporation, in its sole discretion, and without
liability to any person, shall determine to be equivalent, as nearly as
practicable to the nearest whole number and class of shares, to the Shares, and
such shares, after such merger or consolidation, shall be deemed to be Shares
subject to the 1995 Plan.

                                        2
<PAGE>

         8.  VESTING OF RIGHTS. The Optionee (or any executor or administrator
             -----------------
of the optionee who may exercise the Option pursuant to this Agreement) shall
not be deemed to be a shareholder of the Company nor shall he or she have any
rights or privileges as a shareholder of the Company by virtue of the Option,
and he or she shall acquire such status, rights and privileges only when, as and
to the extent the Option is duly exercised in accordance with the terms hereof.

         9.  NON-TRANSFERABILITY. The Option and the rights and privileges
             -------------------
conferred hereby shall not be transferable other than by will or by the laws of
descent and distribution, and during the Optionee's lifetime shall be
exercisable only by the optionee.

         10. NOTICES. Any notice required to be given under the terms of this
             -------
Agreement, including any written notice of exercise given pursuant to Paragraph
3 hereof, shall be given by registered or certified mail, return receipt
requested. Any such notice shall be addressed, if to the Company, at its address
as set forth above, to the attention of its President, and if to the Optionee,
at his or her address as set forth above, or at such other address as either
party may hereafter designate by notice to the other.

         11. INVESTMENT REPRESENTATION. If the Shares have not been registered
             -------------------------
under the Securities Act of 1933, as amended (the "Act"), the exercise of any
part or all of the Option shall be conditioned upon delivery to the Company of a
letter from the Optionee addressed to the Company stating in substance (i) that
the Shares proposed to be acquired by the Optionee upon such exercise are being
acquired for his or her own account for investment and not with a view to sale
or distribution, and (ii) that the optionee understands that the Shares acquired
must be held indefinitely unless they are subsequently registered under the Act,
or an exemption from such registration is available.

         12. RESTRICTIVE STOCK PURCHASE AGREEMENT. Concurrently with the
             ------------------------------------
exercise of an Option, the Optionee shall execute a Restrictive Stock Purchase
Agreement (the "Agreement") substantially in the form attached as Exhibit "B" to
the 1995 Plan and incorporated herein by this reference. The purpose of the
Restrictive Stock Purchase Agreement is to provide the Corporation with an
opportunity to acquire the Shares upon the occurrence of certain events, to
provide that such Shares shall be transferable only upon compliance with the
terms and conditions of the Agreement and to provide for continuity of
operating, administrative and sales personnel of the Company to be derived from
the opportunity of share ownership.

                                        3
<PAGE>

         13. INUREMENT. This Agreement shall be binding. upon and inure to the
             ---------
benefit of any successor or successors of the Company.

         14. GOVERNING LAW. This Agreement shall be interpreted under the laws
             -------------
of the State of California applicable to agreements entered into and to be
performed entirely within such state.

         IN WITNESS WHEREOF, this Agreement has been executed by a duly
authorized officer of the Company and by the Optionee as of the day and year set
forth below.

Dated: _____________________        DESKTALK SYSTEMS, INC.

                                    By___________________________

Dated: _____________________        NAME

                                    By____________________________
                                      Optionee

                                        4
<PAGE>

                                   Exhibit "B"

                      RESTRICTIVE STOCK PURCHASE AGREEMENT
                                 BY AND BETWEEN

                             DESKTALK SYSTEMS, INC.,
                            A CALIFORNIA CORPORATION

                                       AND

              _______________________________________________________
<PAGE>

                                TABLE OF CONTENTS

                      RESTRICTIVE STOCK PURCHASE AGREEMENT

Paragraph                                                           Page
---------                                                           ----

   1.    RESTRICTION ON SUBJECT STOCK............................      1

   2.    INTER VIVOS TRANSFERS...................................      2

   3.    PURCHASE ON TERMINATION.................................      3

   4.    PURCHASE PRICE..........................................      4

   5.    LEGEND CONDITION; CERTIFICATES..........................      4

   6.    CONTINUED EMPLOYMENT....................................      5

   7.    TERMINATION.............................................      5

   8.    INVESTMENT REPRESENTATION...............................      5

   9.    GOVERNING LAW; SUCCESSORS...............................      5

  10.    ENFORCEMENT.............................................      6

  11.    ARBITRATION.............................................      6

  12.    SEVERABILITY............................................      6

  13.    ATTORNEYS, FEES.........................................      6

  14.    PARAGRAPH HEADINGS......................................      7

  15.    NOTICES.................................................      7

  16.    ENTIRE AGREEMENT........................................      7

  17.    REPRESENTATION OF COUNSEL...............................      8

  18.    EFFECTIVE DATE..........................................      8

                                       (i)
<PAGE>

                                   Exhibit "B"

                      RESTRICTIVE STOCK PURCHASE AGREEMENT

THIS AGREEMENT (the "Agreement") is made as of _________________, 19_____, by
and between DESKTALK SYSTEMS, INC., a California corporation (the "Company"),
located at 19401 South Vermont Avenue, Suite F100, Torrance, California 90502
and
_________________________________________________________________________(the
"Purchaser"), with reference to the following facts:

         A.  The Company is a corporation engaged in the business of
heterogeneous computer network integration and systems architecture;

         B.  The authorized capitalization of the Company consists of
1,000,000 shares of common stock (the "Common Stock");

         C.  The Purchaser has been engaged as a key employee of the Company,
and in connection with such employment the Company granted Purchaser an option
to purchase_______________(___) shares of Common Stock (the "Option") pursuant
to its 1995 Incentive Stock Option Plan, and evidenced by an Option Agreement
dated _____________________, 19_______(the "Option Agreement");

         D.  The Purchaser has exercised the Option with respect to
___________________ (_____) shares of Common Stock (the "Subject Stock") for
_____________________($_____________) per share, pursuant to the terms of the
Option Agreement, and the Company proposes to issue the Subject Stock, subject
to the terms of this Agreement; and

         E.  Concurrently with such sale and issuance, the Company and the
Purchaser are entering into this Agreement (i) to provide for the disposition of
the Subject Stock upon the occurrence of certain events, (ii) to provide the
Subject Stock shall be transferable by the Purchaser only upon compliance with
the terms and conditions of this Agreement and (iii) to provide for continuity
of operating, administrative and sales personnel of the Company through equity
ownership of the Company.

NOW THEREFORE, in consideration of the mutual covenants herein contained, it is
agreed as follows:

         1.  RESTRICTION ON SUBJECT STOCK. The Purchaser shall not have the
             ----------------------------
right or power either voluntarily or involuntarily (by operation of law or
otherwise) to sell, assign, transfer, pledge, hypothecate, or in any way
encumber any shares of the Subject Stock, or any legal or economic interest
therein without the prior written consent of the Company except in accordance
with this Agreement. In the event the Subject Stock is transferred in violation
of this Paragraph, the transfer shall be null and void.

             1.1   If the Purchaser desires to sell all or any part of the
Subject Stock in a bona fide transaction during his lifetime, he shall give
written notice thereof to the Company. The notice shall name the proposed
transferee and specify the number of shares sought to be sold, the price offered
per share, the terms of payment and any other material terms or conditions of
the sale, including a written copy of the proposed offer to purchase.
<PAGE>

             1.2   The Company shall have an option to purchase all or any part
of the Subject Stock the Purchaser desires to sell at the price and upon the
terms specified in the notice. The Company shall have thirty (30) days after the
receipt of such written notice to exercise its option. It shall exercise the
option by giving notice of such exercise to the Purchaser and by paying the
purchase price in the same manner as provided in the purchase offer.

             1.3   If the Company does not exercise the option provided for in
this Paragraph 1 as to all of the shares offered for sale by the Purchaser, the
Purchaser shall be entitled to sell the Subject Stock not purchased free of any
restrictions. He shall be entitled to surrender to the Company his Certificates
representing such unpurchased shares and to receive in lieu thereof new
Certificates for an equal number of shares, without the endorsement provided for
in Paragraph 5.1 hereof. Thereupon, the Purchaser shall cease to be a party to
this Agreement.

             1.4   If the offer from a proposed buyer for all or any part of the
Subject Stock states a consideration other than cash or evidences of
indebtedness, then for the purpose of determining the price stated in the offer,
the value of such other consideration shall be the fair market value of such
consideration either as agreed upon by the Purchaser and the Company within
twenty (20) days after the date of the notice or, if such agreement is not
reached, then as determined by arbitration pursuant to the procedure set forth
in Paragraph 11 hereof, and the parties shall be bound by the valuation so
determined.

         2.  INTER VIVOS TRANSFERS. Notwithstanding any provisions to the
             ---------------------
contrary contained in this Agreement, the Purchaser, while he or she is living,
may at any time transfer any or all of his or her interest in the fully paid
Subject Stock to his or her spouse, descendants, spouses of any such
descendants, or the trustee(s) of trust(s) at any time established by the
Purchaser for the sole benefit of one or more of such persons (hereinafter
collectively called "Family Members"). In such event, the Family Member shall
hold the interest involved subject to all of the terms of this Agreement and,
upon demand made at any time by any of the parties to this Agreement, shall
execute an appropriate instrument to that effect. All actions hereunder taken or
omitted by the Purchaser hereunder shall be binding on such Family

                                        2
<PAGE>

Member.  Any obligations of the Purchaser hereunder shall be obligations
of such Family Member.  The Purchaser and Family Members of the Purchaser  shall
be deemed one and the same  indivisible  unit,  and all interest  transferred as
permitted  by this  Paragraph  shall be still deemed to be held and owned by the
Purchaser for the purpose of this Agreement.

         3.  PURCHASE ON TERMINATION.
             -----------------------

             3.1   If the Purchaser

                   (i)      dies;

                   (ii)     becomes disabled (as hereinafter defined);

                   (iii)    has his employment by the Company terminated with or
                            without cause;

                   (iv)     voluntarily terminates his employment with the
                            Company;

                   (v)      obtains or becomes subject to an order for relief
                            under the United States Bankruptcy Code, or a
                            similar law in other jurisdictions;

                   (vi)     makes an assignment for the benefit of his or her
                            creditors;

                   (vii)    is subject to legal process which shall permit the
                            taking of any shares of the Subject Stock including,
                            without limitation, division of the Subject Stock
                            with a spouse in a marital  dissolution  proceeding
                            (all of the foregoing being defined as a
                            "Triggering Event");

the Company shall have the right to purchase from the Purchaser (or his or her
estate, successors, assigns, executor, administrator or personal representative
or trustees of intervivos trusts referred to in Paragraph 2 hereof, hereinafter
collectively referred to as "personal representative"), and the Purchaser (or
his or her personal representative) shall sell to the Company, all of the
Subject Stock at the purchase price and on the terms and conditions hereinafter
set forth.

             3.2   The closing for the purchase and sale (the "Closing"), if the
company exercises its right to acquire the subject stock, shall take place at
the office of the Company in Torrance, California within ninety (90) days after
the Company becomes aware of the Triggering Event; provided, however, if such
Triggering Event is occasioned by the death of the Purchaser, the Closing shall
take place within ninety (90) days after the later of (i) the qualification of
the personal representative of the Purchaser or (ii) the Company becoming aware
of the Triggering Event. The Company shall give the Purchaser, or his or her

                                        3
<PAGE>

personal representative, and the Escrow Agent (as hereinafter defined) at least
ten (10) days prior notice of the time, date and place of Closing. At the
Closing, the Company shall remit the purchase price (as hereinafter defined) in
the manner set forth in Paragraph 4 hereof.

             3.3   The term "disability", as used herein, shall mean such
mental or physical incapacity which prevents the Purchaser from thereafter
performing his normal and customary services for the Company. The determination
of whether such disability exists shall be made by the Company, in its sole
discretion, and the determination of the Company shall be final and binding upon
the Purchaser and his or her personal representative, if any.

             3.4   The restrictions on transferability of the Subject Stock
shall lapse as to any shares of the Subject Stock not acquired by the Company
pursuant to this Agreement upon the occurrence of a Triggering Event.

         4.  PURCHASE PRICE. The purchase price to be paid by the Company for
             --------------
each share of the Subject Stock shall be determined by first computing one
hundred percent (100%) of the fair market value of the Company, as of the end of
the last fiscal quarter prior to the Triggering Event. The fair market value as
so determined shall then be divided by the number of shares of Common Stock then
outstanding and the quotient multiplied by the number of shares of the Subject
Stock owned by the Purchaser. The determination of fair market value shall be
made by the Board of Directors after consideration of the earnings history, book
value, and prospects of the Company in light of market conditions generally. All
values fixed by the Board of Directors shall be conclusive, final and binding
upon (i) the Company and its successors and assigns and (ii) the Purchaser and
the personal representative of Purchaser. Any lien or encumbrance on the Subject
Stock as of the Closing shall reduce the purchase price by an amount equal to
the value of any and all such liens and encumbrances. The purchase price to be
paid by the Company for the Subject Stock shall be paid to the Purchaser (or his
or her personal representative) by cashier's or certified check at the Closing.

         5.  LEGEND CONDITION; CERTIFICATES.
             ------------------------------

             5.1   Each stock certificate now or hereafter issued to the
Purchaser evidencing the Subject Stock shall be endorsed as follows:

         "This stock certificate and the rights represented hereby are subject
         to all of the terms, covenants, conditions and limitations of a certain
         agreement made and entered into by__________________________________
         with DESKTALK SYSTEMS, INC. , dated as of____________________, 1995
         (the "Agreement"), a copy of which is on file with the Secretary of the
         aforesaid Company, and the holder of this certificate accepts and
         agrees to be bound by the Agreement."

                                       4
<PAGE>

             5.2   If the Purchaser is a California resident at the date of this
Agreement, then this Agreement shall be executed by the Purchaser and his or her
spouse, if any. If the Purchaser becomes a California resident at any time after
the date of this Agreement, his or her spouse shall promptly execute such an
acknowledgment.

             5.3   Each stock certificate now or hereafter issued to the
Purchaser evidencing any shares of the Subject Stock shall bear any legend
required by the California Department of corporations or any other governmental
agency with respect to the issuance and transfer of the Subject Stock.

             5.4   Each stock certificate now or hereafter issued to the
Purchaser evidencing any shares of the Subject Stock shall be endorsed as
follows:

         "The shares represented by this certificate have not been registered
         under the Securities Act of 1933, as amended, and are being issued
         pursuant to an exemption that limits their disposition and the transfer
         of such shares is therefore subject to those limitations."

         6.  CONTINUED EMPLOYMENT. Nothing in this Agreement shall confer upon
             --------------------
the Purchaser any right to continue in the employ of or to consult for the
Company or shall affect any right of the Company to terminate the employment of
Purchaser as would exist in the absence of this Agreement.

         7.  TERMINATION. All restrictions under this Agreement shall continue
             -----------
until thirty (30) days after the Common Stock has been listed for trading on a
United States national securities exchange or has been trading in the
over-the-counter market for at least three months on the National Association of
Security Dealers Automated Quotation System. Thereafter this Agreement shall be
of no further force or effect.

         8.  INVESTMENT REPRESENTATION. The Purchaser represents that he or she
             -------------------------
is purchasing the Subject Stock for his or her own account for investment
--
purposes only and not with a view to the distribution thereof, and that he or
she will not dispose of the Subject Stock in violation of the federal securities
laws of the United States, or the State of California, or the jurisdiction where
he or she resides.

         9.  GOVERNING LAW; SUCCESSORS. The execution, delivery, effectiveness
             -------------------------
and performance of this Agreement shall be governed by and construed under the
local laws of the State of California.

                                        5
<PAGE>

This Agreement shall be binding upon and inure to the benefit of the parties
hereto, and their respective heirs, representatives, executors, administrators,
successors and assigns, and the Purchaser, by signing this Agreement, directs
his or her personal representative to open his or her estate promptly in the
courts of proper jurisdiction and to procure, execute and deliver all documents,
including, but not limited to, appropriate orders of the Superior Court, Probate
Division (or court of comparable jurisdiction), and estate and inheritance tax
waivers, as shall be required to effectuate the purposes of this Agreement.

         10. ENFORCEMENT. The Purchaser acknowledges that it will be impossible
             -----------
to measure in money the damage to the Company if the Purchaser fails to comply
with any of the restrictions or obligations herein imposed upon the transfer,
encumbrance or other disposition of the Subject Stock, that such restrictions
and obligations are material, and that in the event of any such failure, the
Company will not have an adequate remedy at law or in damages. Therefore, the
Purchaser hereby consents to the issuance of an injunction or the enforcement of
the equitable remedies against him or her upon the filing of an action by an
aggrieved party without bond or other security, to compel performance of the
terms hereof, and waives any defenses thereto, including, without limiting the
generality of the foregoing, the defenses of (a) failure of consideration, (b)
breach of any other provision of this Agreement, and (c) availability of relief
in damages. The foregoing provisions shall not limit any other remedies which
the aggrieved party may have at law or in equity in connection with any breach,
interpretation or nonperformance hereof.

         11. ARBITRATION. Subject to Paragraph 10 hereof, any controversy or
             -----------
claim arising out of or relating to this Agreement, or the breach thereof, shall
be settled by binding arbitration in the City of Los Angeles, in accordance with
the then current rules of the American Arbitration Association, and judgment
upon the award rendered by the arbitrator(s) may entered in any court having
jurisdiction thereof.

         12. SEVERABILITY. In the event any provision or provisions of this
             ------------
Agreement are for any reason adjudged to be indefinite, invalid or otherwise
unenforceable, such provision or provisions shall to such extent be severed and
disregarded, and the remaining provisions hereof shall subsist and be carried
into effect.

         13. ATTORNEYS' FEES. In the event any action, suit or proceeding is
             ---------------
instituted under or in connection with this Agreement by any party hereto
against any party hereto, the unsuccessful party therein agrees to pay the other
party therein such attorneys' fees as the Court or board of arbitration assuming
jurisdiction may adjudge reasonable in such action, suit or proceeding.

                                        6
<PAGE>

         14. PARAGRAPH HEADINGS. The headings of the paragraphs of this
             ------------------
Agreement are inserted solely for convenience and are not a part of and are not
intended to govern, limit or aid in the construction of any term or provision
hereof.

         15. NOTICES.
             -------

             15.1  All notices hereunder to the Purchaser shall be sent to the
Purchaser at his or her address hereinabove set forth or at such other address
as the Purchaser may designate by written notice sent to the Company at its
office in Torrance, California, with a copy sent to Lawrence E. May, PLC, 1999
Avenue of the Stars, Suite 1250, Los Angeles, California 90067, Attention:
Lawrence E. May, Esq.

             15.2  All notices to the Company hereunder shall be sent to its
offices in Torrance, California at the address hereinabove set forth, with a
copy sent to Lawrence E. May, PLC, 1999 Avenue of the Stars, Suite 1250, Los
Angeles, California 90067, Attention: Lawrence E. May, Esq.

             15.3  All notices shall be in writing and shall be deemed to have
been given on the date of service if served personally on the party to whom
addressed; or if mailed within the United States within seventy-two (72) hours
after mailing, if sent by first-class mail, registered or certified, return
receipt requested, postage prepaid.

             15.4  Any address set forth in this Agreement may be changed by any
party giving notice of such change to the other parties hereto in the manner
provided above.

         16. ENTIRE AGREEMENT. Except for the Option Agreement, this Agreement
             ----------------
is the entire agreement between the parties with respect to the subject matter
hereof, and supersedes all prior agreements, arrangements and understandings
related to the subject matter hereof. This Agreement may be amended,
supplemented or discharged, and any provision hereof may be modified or waived
only by a written agreement executed by all of the parties hereto.

                                        7
<PAGE>

         17. REPRESENTATION OF COUNSEL. The Purchaser acknowledges that Lawrence
             -------------------------
E. May, PLC, is counsel for the Company and does not represent the individual
interest of the Purchaser in this matter. The Purchaser acknowledges that he or
she has been advised, and has been given the opportunity, to seek independent
counsel to advise him or her on' both the form and substance of this Agreement.

         18. EFFECTIVE DATE. This Agreement shall be effective as of the date it
             --------------
becomes fully executed by the parties hereto.

         IN WITNESS WHEREOF, the parties hereinbefore duly authorized have
executed this Agreement the day and year set forth opposite their respective
signatures.

__________________________________          ________________________
Purchaser                                   Date

DESKTALK SYSTEMS, INC.

By________________________________          _______________________
    David J. Kaufman, President             Date

                                        8
<PAGE>

         This is Page 9 of a Restrictive Stock Purchase Agreement by and between
DeskTalk Systems, Inc., and the spouse of the undersigned.

         I acknowledge that I have read and know and understand the contents of
the Restrictive Stock Purchase Agreement between my spouse and DeskTalk Systems,
Inc. (the "Company") , and hereby agree to be bound by its terms and provisions.
I am aware that by the provisions of the Agreement my spouse agrees to sell to
the Company shares of common stock upon the terms and conditions contained
therein, including my community, quasi-community, or similar interest in such
shares, and I agree that I will not bequeath such shares or any of them or any
interest therein by my Will if I should predecease my spouse. I direct that the
residuary clause in my Will shall not be deemed to apply to my community,
quasicommunity, or similar interest, if any, in such shares. I consent to have
the terms and conditions of the Agreement specifically enforced against my
estate if the executor of my estate shall fail to abide by such provisions and
my desires herein expressed.

Date:_____________________________

                                             ___________________________________

                                        9

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00016-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00016-of-00352.parquet"}]]