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                                   LEASE AGREEMENT

                                 BROOMFIELD, COLORADO

                                       BETWEEN


                              PANATTONI-CATLIN VENTURE,
                           A CALIFORNIA GENERAL PARTNERSHIP

                                         AND

                                 ACCESS HEALTH, INC.,
                                A DELAWARE CORPORATION


                                    MARCH 3, 1997

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TABLE OF CONTENTS PLACEHOLDER - DO NOT DELETE!











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                                   LEASE AGREEMENT

                                 BROOMFIELD, COLORADO
                                           
                               BASIC LEASE INFORMATION
                                           


Defined Terms:
-------------

LEASE DATE:          March 3, 1997

LANDLORD:            Panattoni-Catlin Venture, a California
                     general partnership
                     3620 Fair Oaks Boulevard, Suite 150
                     Sacramento, California 95864

TENANT:              Access Health, Inc., a Delaware 
                     corporation
                     310 Interlocken Business Park
                     Broomfield, Colorado 80021
                     (Following the occupancy of the 335 Premises)
                     335 Interlocken Business Park
                     Broomfield, Colorado 80021


PREMISES:            The "PREMISES" referred to in this Lease are located at
                     (i) 329 Interlocken Parkway, Suite A, Broomfield, Colorado
                     ("329 PREMISES"), and (ii) 335 Interlocken Parkway, Suite
                     A, Broomfield, Colorado ("335 PREMISES").  The 329
                     Premises and the 325 Premises are collectively referred to
                     as the "PREMISES", and are generally described in
                     EXHIBIT A attached hereto, which is a Preliminary Site
                     Plan (as hereinafter defined), with a final Site Plan to
                     be attached when available.  As set forth on the
                     Preliminary Site Plan, the 329 Premises contains
                     approximately 21,500 rentable square footage, and the 335
                     Premises contains approximately 70,000 rentable square
                     feet.

INITIAL TERM:        The term of this Lease shall be fifteen (15) years,
                     beginning on the Commencement Date (as hereinafter
                     defined).


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BASE RENT:           The initial annual Base Rent is Nineteen and 27/100ths
                     Dollars ($19.27) per rentable square foot of the Premises,
                     which amount is allocated Fourteen and 95/100ths Dollars
                     ($14.95) to rental obligation ("NNN PORTION") and the
                     remaining Four and 32/100ths Dollars ($4.32) is allocated
                     to Operating Expenses.  Every twenty (20) month period
                     following the Commencement Date, the Base Rent shall be
                     increased by four percent (4.00%) of the NNN Portion in
                     effect for the pervious twenty (20) month period.

TENANT'S USE:        General office and 24-hour per day, 7 day a week call
                     center use, and no other use without Landlord's prior
                     written consent.

SECURITY DEPOSIT:    None.

BROKER FOR TENANT:   Not applicable.

BROKER FOR LANDLORD: Not applicable.


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                                   LEASE AGREEMENT

     This Lease is made and entered into by the Landlord and Tenant referred to
in the Basic Lease Information.  The Basic Lease Information attached to this
Lease as page 1 is hereby incorporated into this Lease by this reference.

     1.   BUILDING IMPROVEMENTS:

          a.   SITE PLAN AND PRELIMINARY PLANS:  Prior to the Lease Date,
Landlord and Tenant have agreed upon a conceptual site plan and elevations
("SITE PLAN") for the buildings ("BUILDINGS") in which the 329 Premises and the
335 Premises are to be located, a copy of which is attached hereto as EXHIBIT B.
The Premises, the balance of the Buildings, the common areas, and parking
facilities are collectively referred to as the "PROJECT".  Following the Lease
Date, Landlord shall cause its engineer ("ENGINEER") to prepare and deliver to
Tenant a set of draft preliminary plans and specifications ("PRELIMINARY
PLANS"), based upon the Site Plan and the general construction specifications
("BUILDINGS SPECIFICATIONS") attached hereto as EXHIBIT C, setting forth the
description of (i) the shell of the Buildings, and (ii) the space plan of the
Premises and the improvements to be constructed therein, which shall include a
description of the materials to be used therein, and the electrical, mechanical
and HVAC systems, except as provided below, to be installed within the
Buildings.  The improvements described in subsection (i) are referred to as the
"BUILDINGS SHELL," and in subsection (ii) are referred to as the "TENANT
IMPROVEMENTS", which are generally described in EXHIBIT D attached hereto.

               Tenant shall approve or disapprove of the Preliminary Plans
within twenty (20) business days following Tenant's receipt of such documents by
providing Landlord with written notice ("OBJECTION NOTICE") of such
determination within such time period.  The failure of Tenant to provide such
notice, and the subsequent failure of Tenant to respond within five (5) business
days following receipt of a second written notice from Landlord, shall be deemed
Tenant's approval of the Preliminary Plans.  In the event that Tenant
disapproves of the Preliminary Plans as provided herein, Landlord and Tenant
shall use their good faith efforts and due diligence to resolve the matters set
forth in the Objection Notice to the reasonable satisfaction of Landlord and
Tenant; provided, however, if Landlord and Tenant have not resolved such matters
within twenty (20) days following Landlord's receipt of the Objection Notice,
such disputed matter shall be submitted to a mediator, reasonably acceptable to
Landlord and Tenant, who shall render a determination of such matter within five
(5) days following such appointment, which determination shall be binding upon
Landlord and Tenant.  Upon Landlord and Tenant reaching agreement upon the
Preliminary


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Plans, such document shall be referred to as the "APPROVED PRELIMINARY PLANS."

          b.   BUILDINGS SHELL/TENANT IMPROVEMENTS: The Buildings Shell and the
construction thereof by Landlord, at Landlord's cost and expense, shall include
the cost of site improvements, plans, construction drawings, requisite fees and
permits relating to the Buildings Shell.  The Tenant Improvements, subject to
the Allowance and the Above-Allowance Amount (as such terms are hereunder
defined), which shall be constructed by Landlord, shall include the cost of
space planning, construction drawings and requisite permits for the Tenant
Improvements.  The actual Buildings Shell and Tenant Improvements shall be set
forth in the Approved Final Plans (as hereinafter defined).  All furniture and
modular partitions, phone and data cabling are the sole responsibility of Tenant
and are not considered Tenant Improvements.  The Tenant Improvements shall
include a security system which is reasonably acceptable to Landlord and Tenant.

          c.   ALLOWANCE:  Landlord agrees to pay the amount of twenty-two and
50/100ths Dollars ($22.50) per rentable square foot of the Premises
("ALLOWANCE") for the obtaining of materials, designing work, construction and
installation of the Tenant Improvements.  Tenant shall have the right to cause
Landlord to modify the Preliminary Plans, as they relate to the Tenant
Improvements, up to three (3) times by delivery of an Objection Notice to
Landlord, in which case, to the extent required, Landlord shall obtain a revised
construction bid from the contractor selected for such construction.  The bid
amount agreed upon pursuant to this Section shall be referred to as the "FINAL
TENANT IMPROVEMENT COST", which cost shall be acceptable to both Landlord and
Tenant.  To the extent that the Final Tenant Improvement Cost is in excess of
the Allowance ("ABOVE-ALLOWANCE AMOUNT"), such amount shall be paid by Landlord.
To the extent that Landlord's actual cost relating to the construction of the
Tenant Improvements is less than the Allowance, Landlord shall credit the amount
of such savings against the first payment of Base Rent due following the
Commencement Date.  Change orders requested by Tenant following agreement upon
the Final Tenant Improvement Cost which increase such cost above the Allowance
shall be at Tenant's cost (all change orders shall be approved by Landlord).

          d.   FINAL PLANS:  Within sixty (60) days following agreement upon the
Approved Preliminary Plans and the Final Tenant Improvement Cost, Landlord shall
prepare and deliver to Tenant final plans and specifications ("FINAL PLANS")
substantially in conformity with the Approved Preliminary Plans.  Within
fifteen (15) business days after delivery of the Final Plans, Tenant shall give
written notice of any changes necessary to bring the Final Plans into
substantial conformity with the Approved Preliminary Plans, and Tenant shall not
object to any


                                         -4-
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logical refinement of the Approved Preliminary Plans or any newly arising
applicable governmental laws or regulations.  Failure of Tenant to deliver to
Landlord written notice of such changes within the fifteen (15) business day
period, shall be deemed approval of the Final Plans.  Upon approval of the Final
Plans, both parties shall endorse their approval on the Final Plans as may be
necessary for filing such documents with the appropriate governmental entity for
approval, which shall be the responsibility of Landlord.  Upon obtaining the
appropriate approvals of the Final Plan from the applicable governmental entity,
such document shall be referred to as the "APPROVED FINAL PLANS."  

          e.   COMMENCEMENT OF CONSTRUCTION:  Promptly upon (i) obtaining the
Approved Final Plans, and following Landlord obtaining all requisite permits and
authorizations, Landlord shall commence construction of the building shell and
improvements described therein, which are collectively referred to as the
"BUILDINGS IMPROVEMENTS," and diligently prosecute such construction to
completion.  Landlord, using Landlord's good faith efforts and due diligence,
shall cause the (i) 329 Premises to be Ready for Occupancy (as hereinafter
defined), excepting Punch List Items (as hereinafter defined), on or before
November 15, 1997 ("329 COMPLETION DEADLINE"), and (ii) 335 Premises to be Ready
for Occupancy, excepting Punch List Items, on or before January 1, 1998 ("335
COMPLETION DEADLINE").  Each Completion Deadline shall be adjusted, on a day to
day basis, as a result of any delays that result from Tenant failing to meet its
obligations at the times required by this Lease.

          f.   COMPLETION AND DELIVERY:  Each Premises shall be ready for
occupancy ("READY FOR OCCUPANCY") when (i) construction of the Buildings
Improvements is substantially completed in accordance with the Approved Final
Plans, (ii) Landlord has obtained for the Premises any permits (temporary or
final) that are legally required for Tenant's Use (business licenses for
Tenant's operations shall be the obligation of Tenant), (iii) any and all
parking areas to be constructed by Landlord, as set forth in the Approved Final
Plans, relating to the Premises have been completed, (iv) any and all
landscaping, sidewalks and other outdoor common area improvements in the
Approved Final Plans have been completed, and (v) any all utility hook-ups
necessary for the use of the Buildings are in place and are fully operational;
provided, however, in no event shall Tenant be required to take possession of
(i) the 329 Premises prior to the 329 Completion Deadline, and (ii) the 329
Premises or the 335 Premises prior to the 335 Completion Deadline.  Landlord
shall use its good faith efforts to give Tenant thirty (30) days prior written
notice ("PRE-OCCUPANCY NOTICE") of the date when each Premises will be Ready for
Occupancy.


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          g.   EARLY ENTRY:  Tenant may, following its receipt of the
Pre-Occupancy Notice, at Tenant's sole risk, enter the Premises ("EARLY ENTRY")
and install trade fixtures, equipment and other tenant improvements in the
Premises; provided, however, that (i) Tenant's early entry shall not
unreasonably interfere with construction of the Buildings Improvements; and (ii)
all provisions of this Lease, excepting the payment of Base Rent, shall apply
during such entrance.  Landlord shall be responsible for all utility costs at
the Premises prior to the Commencement Date.

          h.   COMPLETION DEADLINE:  The parties agree that if either of the
Premises is not Ready for Occupancy by the applicable Completion Deadline, plus
any delays caused by Tenant or Force Majeure Events (as hereinafter defined),
this Lease shall not be void or voidable, nor shall Landlord be liable to Tenant
for any loss or damage resulting therefrom, and the expiration date of the Term
of this Lease shall be extended for such delay; but in such event, Tenant shall
not be liable for rent until the Commencement Date for such Premises; provided,
however, if such delays were caused or attributable to Tenant, Rent shall
commence as of the scheduled Completion Deadline.  For the purpose of this
Lease, the Completion Deadline shall be automatically extended for any delays
beyond the reasonable control of Landlord, such as acts of God, fire,
earthquake, acts of a public enemy, riot, insurrection, unavailability of
materials, governmental restrictions on the sale of materials or supplies or on
the transportation of such materials or supplies, strike directly affecting
construction or transportation of materials or supplies, shortages of materials
or labor resulting from government controls, or weather conditions
(collectively, "FORCE MAJEURE EVENT").  Notwithstanding the foregoing, (i)
excepting delays caused by Tenant or Force Majeure Events, in the event that
each Premises is not Ready for Occupancy prior to each respective Completion
Deadline, for each day of delay until such Premises is Ready for Occupancy,
Tenant shall be entitled to one (1) day of Base Rent-free possession of such
Premises, as applicable, and (ii) excepting delays caused by Tenant, in the
event that 335 Premises is not Ready for Occupancy prior to June 30, 1998, for a
period of fifteen (15) days thereafter, Tenant shall have the right to terminate
this Lease by providing written notice of such election to Landlord. 

          i.   MEASUREMENT OF PREMISES AND BUILDINGS:  The total rentable and
usable square footage ("SQUARE FOOTAGE") of the Buildings and Premises as shown
on the Approved Final Plans, as amended by notations reflecting the actual
construction of the Buildings, shall be binding and conclusive on Landlord and
Tenant.  Such measurement shall be consistent with BOMA standards, ANSI/BOMA
Z65.1, 1996.  If the rentable square footage of the Premises is different than
that set forth in the Basic Lease Information, as determined by the preceding
sentence,


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<PAGE>

Landlord and Tenant, shall execute a written amendment to modify the Basic Lease
Information, as well as other modifications due to such change. 

          j.   REPRESENTATIVES:  Landlord hereby appoints Tim Gagnier as
Landlord's representative to act for Landlord in all matters covered by Section
1.  Tenant hereby appoints Mike Modiz as Tenant's representative to act for
Tenant in all matters covered by this Agreement.  All inquiries, requests,
instructions, authorizations and other communications with respect to the
matters covered by this Section 1 shall be related to Landlord's representative
or Tenant's representative, as the case may be.  Either Landlord or Tenant may
change its representative at any time by written notice to the other.

          k.   CONDITION OF CONSTRUCTION:  As of the Commencement Date, Landlord
represents and warrants that the Buildings and the Tenant Improvements, to the
extent that such were constructed by or caused to be constructed by Landlord,
are in compliance with all applicable laws, statutes and ordinances, which
includes ADA (as hereinafter defined), and shall be in good working order and
repair.

     2.   PREMISES:  This Lease shall be effective as of the date of execution
hereof by Landlord and Tenant.  Landlord hereby leases to Tenant and Tenant
hereby leases from Landlord upon the terms and conditions contained herein the
Premises. 

     3.   PROJECT COMMON AREAS: The term "PROJECT COMMON AREAS" shall refer to
all areas and facilities outside the Premises and within the Project that are
provided and designated by Landlord from time to time for the general
nonexclusive use of Landlord, Tenant, and of other lessees in the Project and
their respective employees, suppliers, shippers, customers, and invitees. 
Landlord hereby grants to Tenant, during the term of this Lease, the
nonexclusive right to use, in common with others entitled to such use, the
Project Common Areas as they exist from time to time, subject to any rules,
regulations, and restrictions governing the use of the Project as from time to
time made or amended by Landlord.  Under no circumstances shall the right
granted herein to use the Project Common Areas be deemed to include the right to
store any property in the Project Common Areas.  Provided that Landlord, using
its reasonable efforts, does not unreasonably interfere with Tenant's use of the
Premises, Landlord reserves the right at any time and from time to time, to:
(i) make alterations in or additions to the Project and to the Project Common
Areas which are approved (not be unreasonably withheld) by Tenant;
(ii) temporarily close any portion of the Project Common Areas for maintenance
purposes which are approved (not to be unreasonably withheld) by Tenant; and
(iii) promulgate reasonable and nondiscriminatory rules and regulations
governing the use of the Project Common Areas. 


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     4.   ACCEPTANCE OF PREMISES:  Excepting Punch List Items, if any, Tenant's
taking possession of the Premises shall constitute Tenant's acknowledgment that
the Premises are in good condition and constructed in accordance with the
provisions of this Lease and that Tenant agrees to accept the same in its
condition existing as of the date of such entry, excepting latent defects, which
shall remain the responsibility of Landlord, except that if Tenant takes early
possession of either Premises as provided in Section 1(g), such early possession
shall not constitute "taking possession" or acceptance of such Premises
thereunder.  Furthermore, Tenant's acceptance of each such Premises shall not
constitute acceptance of possession to the other Premises.  Within thirty (30)
days after the Tenant takes possession of each Premises, Tenant shall deliver to
Landlord a list of items ("PUNCH LIST ITEMS") that Tenant reasonably deems that
Landlord complete or correct in order for the Premises to be reasonably
acceptable.  Following Landlord's receipt of the Punch List Items, Landlord
shall complete and/or correct such items set forth on the Punch List Items using
its good faith efforts and due diligence within thirty (30) days following
Landlord's receipt of such document.  If Tenant does not deliver the Punch List
Items to Landlord within such time period, Tenant shall be deemed to have
accepted the condition of the Premises.  Landlord shall use its reasonable
efforts to not unreasonably interfere with Tenant's use of the Premises as a
result of such repair work.

     5.   TERM:  This Lease shall be effective as of the date of execution
hereof by Landlord and Tenant.  The Initial Term of this Lease shall commence on
the date that the 329 Premises is Ready for Occupancy, which shall not be prior
to the 329 Completion Deadline ("COMMENCEMENT DATE"), and shall expire on the
last day of the one hundred eightieth (180th) full month following the
Commencement Date ("EXPIRATION DATE"), unless earlier terminated in accordance
with the provisions of this Agreement.  The time period between the Commencement
Date and the Expiration Date shall be referred to as the "INITIAL TERM."

     6.   RENT:

          a.   BASE RENT:  Tenant shall pay to Landlord the monthly Base Rent
without deduction, setoff, prior notice, or demand, except as provided in this
Lease, in advance on or before the first (1st) day of each month, commencing on
the Commencement Date, and continuing during the Initial Term.  Base Rent for
the first month, or portion of it, shall be paid upon execution of this Lease,
which amount shall be prorated at the rate of one thirtieth (1/30) of the Base
Rent per day for any partial month.  All rent shall be paid to Landlord at the
address to which notices to Landlord are given.  


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<PAGE>

          b.   LATE CHARGE:  If Tenant fails to make any payment of Base Rent
when due, or other appropriate charges, within thirty (30) days after receipt of
an invoice (which describes in reasonable detail the basis for such requested
payment) from Landlord, and such default is not cured within ten (10) days
following such due date, Landlord and Tenant agree that it would be
impracticable or extremely difficult to fix the actual damage to Landlord
resulting from nonpayment and the collection efforts of Landlord necessitated
thereby.  Therefore, Landlord and Tenant estimate that such damage shall be two
and one-half percent (2.50%) of the amount in default, and Tenant shall pay as
additional rent, that sum, in addition to all other sums owing.  Acceptance of
any late charge shall not constitute a waiver of Tenant's default with respect
to the overdue amount, or prevent Landlord from exercising any of the other
rights and remedies available to Landlord.

     7.   SECURITY DEPOSIT: [Intentionally Deleted].

     8.   OPERATING EXPENSES:

          (a)  For the purpose of this Section 8(a) and this Lease, the
following terms are defined as follows:

               (1)  "BASE YEAR" shall mean the 1998 calendar year.

               (2)  "LEASE YEAR" shall mean each calendar year after the Base
Year. 

               (3)  "TENANT'S PROPORTIONATE SHARE" of the total rentable area of
the Premises as compared to the total rentable square footage of the Buildings.

               (4)  "OPERATING EXPENSES" shall mean all costs and expenses paid
or incurred by or on behalf of Landlord (whether directly or through independent
contractors) in connection with the operation, repair, replacement and
maintenance of the Buildings, the Project, and the Project Common Areas,
including the following costs by way of illustration, but not limitation:
(i) payments under service contracts with independent contractors for operating
(including providing security services, if any), maintaining, repairing or
cleaning the Project or any portion thereof or any fixtures or equipment
therein; (ii) all costs for electricity, water, gas, steam, sewer and other
utility services to the Project Common Areas, including any taxes on any such
utilities (Tenant shall be responsible for Utility Services (as hereinafter
defined) pursuant to Section 13); (iii) repairs and replacements which are
appropriate to the continued operation of the Buildings as a first-class office
building; (iv) cost of landscaping in, on or about the Project; (v) expenses
incurred in connection with the operation of the Project, such as premiums for
such insurance as Landlord


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is required to obtain pursuant to this Lease or may, in its discretion, from
time to time carry (including, without limitation, liability insurance, fire and
casualty insurance, rental interruption insurance, flood and earthquake
insurance, and any other insurance) (collectively, "INSURANCE"), (vi) reasonable
fees payable to a property management company (which may be owned or controlled
by Landlord or Landlord's principals) for the management of a first-class office
building; (vii) the cost of capital improvements made by Landlord in order
(i) to conform to any changes in laws, rules, regulations or requirements of any
governmental authority having jurisdiction, provided that such expense, if a
capital expenditure as determined by generally accepted accounting procedures,
shall be amortized over such expenditure's useful life, and only such amortized
portion shall be included in Operating Expenses, or (ii) to effect a labor
saving, energy saving or other economy, which cost shall be included in
Operating Expenses for the Lease Year in which such improvement was made not in
excess of the savings resulting from such expenditure; (viii) real property
taxes and assessments (collectively, "REAL PROPERTY TAXES"), which shall
include, but not be limited to, any and all taxes, assessments, water and sewer
charges and other similar governmental charges levied on or attributable to the
Project, including the Buildings, or their operation, ordinary and
extraordinary, substantive and additional, unforeseen as well as foreseen,
present and future, of any kind and nature whatsoever, including, without
limitation, (i) real property taxes or assessments (including from owners
associations) levied or assessed against the Project, or (ii) any tax measured
by gross rentals received from the leasing of the Premises pursuant to this
Lease, excluding any net income, franchise, capital stock, estate or inheritance
taxes imposed by the state or federal government or their agencies, branches or
departments; and (ix) all other reasonable or necessary expenses paid in
connection with the operation, maintenance, repair, replacement and cleaning of
the Project.

                    The Operating Expenses that vary with occupancy and which
are controllable by Landlord ("VARYING OPERATING EXPENSES") (which do not
include, among others, Real Property Taxes and Insurance) and that are
attributable to any Lease Year in which less than ninety-five percent (95%) of
the rentable area of the Buildings is occupied by tenants will be adjusted by
Landlord to the amount that Landlord reasonably believes they would have been if
ninety-five percent (95%) of the rentable area of the Buildings had been
occupied for the purpose of determining Operating Expenses for the Base Year.

                    Subject to the preceding paragraph, in no event shall
Varying Operating Expenses for any given Lease Year be increased by in excess of
five percent (5.00%), per annum, above the Varying Operating Expenses for the
previous Lease Year.


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<PAGE>

               (4)  During the term of this Lease, Landlord shall use its
commercially reasonable efforts to operate the Project as required by this
Lease, keeping Operating Expenses consistent with Operating Expenses generally
incurred by similarly situated landlords of real estate projects similar to this
Project.  Landlord acknowledges that the Premises is intended to be utilized by
Tenant's business operations in a twenty-four (24) hour basis, seven (7) days a
week.

               (5)  Tenant's Proportionate Share of Operating Expenses shall be
payable by Tenant to Landlord as follows:

                    (i)    Beginning with the Lease Year following the Base Year
and for each Lease Year thereafter, Tenant shall pay Landlord an amount equal to
Tenant's Proportionate Share of the Operating Expenses incurred by Landlord in
the Lease Year which exceeds the total amount of Operating Expenses payable by
Landlord for the Base Year.  This excess is referred to as the "EXCESS
EXPENSES."

                    (ii)   To provide for current payments of Excess Expenses,
Tenant shall, at Landlord's request, pay as additional rent during each Lease
Year, an amount equal to Tenant's Proportionate Share of the Excess Expenses
payable during such Lease Year, as estimated and modified by Landlord from time
to time, but not in excess of once per Lease Year.  Such payments shall be made
in monthly installments, commencing on the first day of the month following the
month in which Landlord notifies Tenant of the amount it is to pay hereunder and
continuing until the first day of the month following the month in which
Landlord gives Tenant a new notice of estimated Excess Expenses.  It is the
intention hereunder to estimate from time to time the amount of the Excess
Expenses for each Lease Year, including the Lease Year immediately following the
Base Year, and Tenant's Proportionate Share thereof, and then to make an
adjustment in the following year based on the actual Excess Expenses incurred
for that Lease Year.

                    (iii)  On or before March 1 of each Lease Year after the
first Lease Year (or as soon thereafter as is practical), Landlord shall deliver
to Tenant a statement ("EXPENSE STATEMENT") setting forth Tenant's Proportionate
Share of the Excess Expenses for the preceding Lease Year; provided, however,
that the failure of Landlord to supply such statement shall not constitute a
waiver of Landlord's rights to collect for such Excess Expenses if such
statement is delivered by April 1 of such year.  If Tenant's Proportionate Share
of the actual Excess Expenses for the previous Lease Year exceeds the total of
the estimated monthly payments made by Tenant for such year, Tenant shall pay
Landlord the amount of the deficiency within thirty (30) days of the receipt of
the statement.  If such total exceeds Tenant's Proportionate Share of the actual
Excess Expenses for such Lease Year, then Landlord shall credit against Tenant's
next


                                         -11-
<PAGE>

ensuing monthly installment(s) of Excess Expense an amount equal to the
difference until the credit is exhausted.  If a credit is due from Landlord on
the Expiration Date, Landlord shall pay Tenant the amount of the credit within
thirty (30) days following the determination of such amount.  The obligations of
Tenant and Landlord to make payments required under this Section 8 shall survive
the Expiration Date.  Tenant's Proportionate Share of Excess Expenses in any
Lease Year having less than 365 days shall be appropriately prorated.

               (6)  For a period of one (1) year after receipt of the Expenses
Statement, Tenant shall be entitled, upon ten (10) days prior written notice and
during normal business hours, at the office of the Buildings' property manager
or such other place as Landlord shall designate, to inspect and examine those
books and records of Landlord relating to the determination of Excess Expenses
for the immediately preceding Lease Year.  Failure of Tenant to request such
inspection within such one (1) year period shall render such Expenses Statement
conclusive and binding on Tenant.  If, after inspection and examination of such
books and records, Tenant disputes the amounts of the Excess Expenses charged by
Landlord, Tenant may, by written notice to Landlord, request an independent
audit of such books and records.  The independent audit of the books and records
shall be conducted by a certified public accountant ("CPA") acceptable to both
Landlord and Tenant.  If, within thirty (30) days after Landlord's receipt of
Tenant's notice requesting an audit, Landlord and Tenant are unable to agree on
the CPA to conduct such audit, then Landlord may designate a nationally
recognized accounting firm not then employed by Landlord or Tenant to conduct
such audit.  The audit shall be limited to the determination of the amount of
Excess Expenses for the subject Lease Year.  If the audit discloses that the
amount of Excess Expenses billed to Tenant was incorrect, the appropriate party
shall pay to the other party the deficiency or overpayment, as applicable.  All
costs and expenses of the audit shall be paid by Tenant unless the audit shows
that Landlord overstated Excess Expenses for the subject Lease Year by more than
five percent (5.00%), in which case Landlord shall pay all costs and expenses of
the audit and any amounts owing from Landlord shall accrue interest at fifteen
(15.00%) per annum until paid in full.  Tenant and the CPA shall keep any
information gained from such audit confidential and shall not disclose it to any
other party.  The exercise by Tenant of the audit rights hereunder shall not
relieve Tenant of its obligation to timely pay all sums due hereunder,
including, without limitation, the disputed Excess Expenses.

     9.   USE; LIMITATION ON USE:

          a.   USE:  Tenant shall use the Premises for the Tenant's Use and for
no other use or purpose, without the prior written consent of Landlord, which
shall not be unreasonably withheld.  Tenant shall comply with all the
requirements of all


                                         -12-
<PAGE>

easements, cross easements, joint maintenance obligations and similar matters
applicable to the Premises which are in effect or may become effective with any
governmental agency or private party.  Landlord represents and warrants that no
such matters, to the extent imposed by Landlord, shall have an adverse effect in
any material respect on the use of the Premises and associated parking, ingress
and egress, for general office purposes.  Tenant shall be responsible for
obtaining all appropriate operating licenses necessary for the Tenant's Use.

          b.   LIMITATIONS ON USE:  Tenant's Use of the Premises shall be in
accordance with the following:

               (1)  Tenant shall not do, bring, or keep anything in or about the
Premises that will cause a cancellation of any insurance covering the Premises,
or any part thereof or any of its contents.  If the rate of any insurance
carried by Landlord is increased as a result of Tenant's use beyond such use
which is permitted hereunder, Tenant shall pay the Landlord within ten (10) days
before the date Landlord is obligated to pay a premium on the insurance, or
within ten (10) days after Landlord delivers to Tenant a certified statement
from Landlord's insurance carrier stating that the rate increase was caused
solely by an activity on the Premises as permitted in this Lease, whichever date
is later, the sum equal to the difference between the original premium and the
increased premium.

               (2)  Following the Commencement Date, and subject to Landlord's
representations set forth in Sections 1 and 3, Tenant shall not use the Premises
or permit anything to be done in or about the Premises which will in any way
conflict with any law, statute, zoning restriction, ordinance or governmental
law or rule, regulation, or requirement of any duly constituted public
authorities now in force or which may hereafter be enacted or promulgated, or
subject Landlord to any liability for injury to any person or property by reason
of any business operation being conducted in or about the Premises.  To the
extent required due to Tenant's specific use of the Premises, as opposed to
compliance required by all tenants of the Project, Tenant shall, at its sole
cost and expense, promptly comply with all laws, statutes, ordinances, and
governmental rules, regulations, including, but not limited to, the Americans
with Disabilities Act ("ADA") of 1990 (42 U.S.C. 12101 ET SEQ.), any amendment
thereto or regulations promulgated thereunder, or state or local ordinances or
codes enacted pursuant thereto; or requirements of any board or fire insurance
underwriters or other similar bodies, now or hereafter constituted, relating to
or affecting the condition, use, or occupancy of the Premises (collectively,
"APPLICABLE LAWS"), excluding structural changes not related to or affected by
Tenant's improvements or acts, which shall be the responsibility of Landlord. 
The final judgment of any court of competent jurisdiction or the admission of
Tenant in any action against Tenant, whether Landlord be a party thereto or not,
that


                                         -13-
<PAGE>

Tenant has violated any law, statute, ordinance, or governmental rule,
regulation, or requirement, shall be conclusive of that fact as between Landlord
and Tenant.  

               (3)  Tenant shall not use the Premises in any manner that will
constitute waste, nuisance, or unreasonable annoyance (including, without
limitation, the use of loudspeakers or sound or light apparatus that can be
heard or seen outside the Premises) to owners or occupants of adjacent
properties, provided, however, that Landlord specifically recognizes Tenant's
need to have and agrees to provide 24-hour lighting sufficiently bright for the
safety of Tenant's employees working during such 24-hour period.  Tenant shall
not use the Premises for the preparation, manufacture, or mixing of anything
that might emit any odor or objectionable noises or lights onto adjacent
properties.

               (4)  Tenant shall not do anything on the Premises that will cause
damage to the Premises.  No machinery, apparatus, or other appliance shall be
used or operated in or on the Premises that will in any manner injure, vibrate,
or shake the Premises, excepting reasonable office equipment used in conjunction
with general use (e.g. copy machines, phone systems, computers, office apparatus
and similar machines).

               (5)  Tenant shall not store, use or permit to be used in or about
the Premises any Hazardous Materials (as hereinafter defined), other than is
permitted in this Lease and office supplies and typical cleaning materials
containing Hazardous Materials which are customarily for general office use. 
Tenant shall comply, at its expense, with all federal, state and local statues
or regulations concerning Hazardous Materials.

     10.  MAINTENANCE:

          (a)  Tenant shall, at Tenant's sole cost and expense, maintain the
Premises, in good, clean and first-class condition and repair.  Without limiting
the generality of the foregoing, Tenant shall be solely responsible for
maintaining and repairing all fixtures, electrical lighting, ceilings and
flooring coverings, windows, doors, plate glass, skylights, and interior walls
within the Premises to the extent caused by actions, which includes negligent
acts, of Tenant, its agents, employees and contractors and invitees.  Landlord
acknowledges that Tenant shall have no obligation to repair or maintain any
areas of the Project outside of the Premises, unless such repair or maintenance
is required due to acts of Tenant, its agents, employees, contractors and
subcontractors.  Excepting maintenance, repairs or replacements required due to
the negligence or willful misconduct of Landlord, its agents, employees,
contractors and subcontractors, Tenant acknowledges that Landlord shall have no
obligation to maintain, repair or replace any telecommunications or computer
cabling or wiring


                                         -14-
<PAGE>

which is located in the Premises or which exclusively serves the Premises. 
Landlord shall have no obligation to alter, remodel, improve, repair, decorate
or paint the Premises except as specifically set forth in this Lease.  Except as
permitted by this Lease, Tenant shall not make any repairs to the Buildings or
to the mechanical, electrical or heating, ventilating or air conditioning
systems of the Premises or the Buildings, unless such repairs are previously
approved in writing by Landlord.

          (b)  Landlord shall be responsible for maintaining and repairing all
structural portions and latent defects of the Buildings, and shall maintain the
roof, sidewalls, and foundations of the Buildings in good, clean and safe
condition and repair.  Landlord shall be entitled to approve the sealing of any
roof penetrations caused by Tenant Improvements.  Landlord shall also maintain
all landscaping, driveways, parking lots, fences, signs, sidewalks and the
Project Common Areas. Landlord shall be responsible for maintenance and repair
of all plumbing, heating, electrical, air conditioning and ventilation systems
and shall provide janitorial services in the Premises.  Except as otherwise
provided in this Lease, Landlord shall have no liability to Tenant, nor shall
Tenant's obligations under this Lease be reduced or abated in any manner
whatsoever by reason of any inconvenience, annoyance, interruption or injury to
business arising from Landlord making any repairs or changes which Landlord is
required or permitted by this Lease or by any other tenants' lease or required
by law to make in or to any portion of the Buildings or the Premises.  Landlord
shall use reasonable efforts to minimize any interference with Tenant's business
at the Premises.  If Tenant fails to maintain the Premises in good order,
condition and repair, Landlord may give Tenant thirty (30) days' written notice
to do such acts as are reasonably required to so maintain the Premises.  If
Tenant fails to promptly commence such work within such time period and
diligently prosecute it to completion, then Landlord shall have the right to do
such acts and expend such funds at the expense of Tenant as are reasonably
required to perform such work.  Any amount so expended by Landlord shall be paid
by Tenant promptly after demand with interest at ten percent (10.00%) per annum,
from the date of such work, but not to exceed the maximum amount then allowed by
law.  Landlord shall have no liability to Tenant for any damage, inconvenience,
or interference with the use of the Premises by Tenant as the result of
performing any such work.  

          (c)  Notwithstanding any other provisions of this Lease to the
contrary, upon receipt of written notice (the "FIRST REPAIR NOTICE") from Tenant
that a repair is required pursuant to Section 10(b), above, Landlord shall cause
such repair to be made within a reasonable period of time given the
circumstances but in no event later than thirty (30) days after it receives the
First Repair Notice; provided, however, that if the repair is of such a nature
that it cannot be completed within thirty (30) days, then such longer time as
reasonably necessary.  If Landlord


                                         -15-
<PAGE>

fails to make the repair within the said time period, Tenant may give an
additional notice (the "SECOND REPAIR NOTICE") to Landlord.  If Landlord fails
to commence thereafter such repair with ten (10) days after receipt of the
Second Repair Notice and thereafter diligently pursues said repair to
completion, Tenant may perform such repair.  Notwithstanding the foregoing, in
the event of an emergency, if Landlord fails to make necessary repairs
immediately after receipt of the First Repair Notice, Tenant may make such
repairs without providing Landlord with the Second Repair Notice.  All repairs
performed by Tenant pursuant to this Section 10(c) shall be made by a qualified
licensed contractor(s) with sufficient expertise in such matters and in
accordance with all applicable laws, statutes and ordinances.  Landlord shall
reimburse Tenant for Tenant's actual costs incurred within ten (10) days after
Landlord's receipt of a written demand from Tenant, which demand shall include
supporting invoices.  If Landlord disputes the need for such repair, Landlord
shall deliver written notice of such disagreement to Tenant within ten (10) days
after its receipt of the First Repair Notice.  Notwithstanding such dispute,
Tenant may cause such repair to be completed pending resolution of such dispute.
The dispute shall be resolved by a mutually acceptable mediator, which
determination shall be binding upon Landlord and Tenant; provided, however, that
if the parties cannot agree on an engineer, then the dispute shall be resolved
by arbitration pursuant to the commercial arbitration rules then in effect for
the American Arbitration Association.  The losing party shall pay the costs of
the engineer or arbitrator, whichever is applicable. If Landlord is obligated to
reimburse Tenant for the repair and fails to do so as provided in this
Section 10(c), Tenant may offset such reimbursement amount against the next Rent
payment(s) due from Tenant to Landlord pursuant to this Lease.

          (d)  Landlord acknowledges that Tenant's business operations are
intended to operate on a twenty-four (24) hour basis and that certain of the
repairs required by Landlord in Section 10(b) (collectively, "LANDLORD REPAIRS")
may have to be made on an expedited basis due to a material disruption of
Tenant's business operations caused by such condition, which condition shall be
referred to as an "EMERGENCY CONDITION."  In this regard, in the event an
Emergency Condition relating to a Landlord Repair exists, Tenant shall deliver
to Landlord, by facsimile, a written notice ("EMERGENCY NOTICE") describing such
Emergency Condition.  The Emergency Notice shall, in ten (10) point bold typed
across the top, stating "AN EMERGENCY SITUATION EXISTS AT THE PREMISES REQUIRING
YOUR IMMEDIATE ATTENTION."  In the event that Landlord fails to commence repair
of the Emergency Condition within ten (10) hours (if such situation occurs
during non-business hours, Tenant shall utilize Landlord's paging system, the
procedure for which shall be provided to Tenant prior to the Commencement Date),
Tenant, using licensed contractors which are qualified to perform such tasks in


                                         -16-
<PAGE>

compliance with Applicable Laws, shall have the right to make the Landlord
Repairs; provided, however, such repairs shall be limited to the temporary
remediation of such Emergency Condition and Landlord shall thereafter be
responsible for the full repair of such condition.  Landlord shall reimburse
Tenant's actual expenses incurred in making such temporary remediation repairs
within fifteen (15) days following Landlord's receipt of written demand and
supporting invoices.  If such repayment is not made within such fifteen (15) day
period, such amount shall accrue interest at the rate of fifteen percent
(15.00%) per annum until paid in full.

     11.  ALTERATIONS:

          a.   LANDLORD CONSENT REQUIRED:  Tenant shall not make any alterations
to the Premises without Landlord's prior written consent, which shall not be
unreasonably withheld.  Notwithstanding the foregoing, Tenant shall be entitled
to make nonstructural internal modifications to the Buildings, which do not
effect the base electrical or mechanical systems of the Buildings, without the
prior written consent of Landlord, which are not in excess of Fifty Thousand and
No/100ths Dollars ($50,000.00) during any year within the Initial Term, or
Extended Term, as applicable.  Any alterations made shall comply with Applicable
Law and shall remain on and be surrendered with the Premises on expiration or
termination of the Initial Term or Extended Term, if applicable, except that
Landlord can elect at the time Tenant seeks Landlord's approval of the
alterations, to require Tenant to remove any alterations that Tenant has made to
the Premises.  If Landlord so elects, Tenant, at its cost, shall restore the
Premises to the condition designated by Landlord in its election, before the
last day of the Initial Term or Extended Term, if applicable, or within thirty
(30) days after notice of election is given, whichever is later.

          b.   NOTICE:  If Tenant makes any alterations to the Premises as
provided in this Section, the alterations shall not be commenced until ten (10)
days after Landlord has received written notice from Tenant stating the date the
installation of the alterations is to commence so that Landlord can post and
record an appropriate notice of nonresponsibility.

          c.   TRADE FIXTURES:  Tenant may install fixtures, machinery or other
equipment.  Except for items belonging to Landlord, Tenant may remove any of
such trade fixtures or equipment upon the termination of this Lease; provided
that Tenant is not in default under the terms and conditions of this Lease.  

     12.  MECHANIC'S LIEN:


                                         -17-
<PAGE>

          a.   TENANT PAYS CONSTRUCTION COSTS:  Tenant shall pay all costs for
construction done by it or caused to be done by it on the Premises which
construction is beyond the scope of construction to be performed by Landlord
pursuant to Section 1.  Tenant shall keep the Premises free and clear of all
mechanics' liens resulting from construction done by or for Tenant.

          b.   LIEN RELEASE BOND:  Tenant shall have the right to contest the
correctness or the validity of any such lien, if immediately on demand by
Landlord, Tenant procures and records a lien release bond issued by a
corporation authorized to issue surety bonds in Colorado in an amount equal to
the lien.

     13.  UTILITIES AND SERVICES:

          Tenant shall make all arrangements for and pay for all utilities and
services furnished to or used by it at the Premises, including, without
limitation, gas, electricity, water, and telephone service, and for all
connection charges (collectively, "UTILITY SERVICES").  Landlord shall not be
liable for any failure or interruption of any utility service being furnished to
the Premises, and no such failure or interruption shall entitle Tenant to
terminate this Lease.  The cost of Utility Services shall not be included by
Landlord in Operating Expenses, which expenses shall be paid by Tenant directly
to the utility provider.

     14.  INDEMNITY, EXCULPATION AND INSURANCE:

          a.   WAIVER OF LIABILITY:  Landlord shall not be liable to Tenant and
Tenant hereby waives all claims against Landlord, its partners, officers,
trustees, affiliates, directors, shareholders, employees, contractors, agents
and representatives (collectively, "AFFILIATES") for any injury or damage to any
person or property occurring or incurred in connection with or in any way
relating to the Premises from any cause, excepting events caused by the
negligence or misconduct of Landlord, its agents, employees or contractors. 
Tenant agrees that in no case shall Landlord ever be responsible or liable on
any theory for any injury to Tenant's business, loss of profits, loss of income
or any other form of consequential damage.  Tenant shall give prompt notice to
Landlord in the event of (a) the occurrence of a fire or accident in the
Premises, or (b) the discovery of any defect therein or in the fixtures or
equipment thereof.  Notwithstanding any other provision of this Lease to the
contrary, Tenant waives any claims based on damage or injury resulting from
Landlord's failure to police or provide security for the Premises.

          b.   INDEMNIFICATION:

               (i) Tenant shall indemnify, defend (with legal counsel selected
by Landlord and consented to by Tenant), protect


                                         -18-
<PAGE>

and hold Landlord and the Premises harmless from and against any and all claims,
suits, judgments, losses, costs, obligations, damages, expenses, interest and
liabilities, including, without limitation, reasonable attorneys' fees,
resulting from Tenant's use of the Premises, or for any injury or damage to any
person or property whatsoever arising out of or in connection with this Lease,
the Premises or Tenant's activities in the Premises, when such injury or damage
has been caused in whole or in part by the act, negligence, fault or omission of
Tenant, its agents, servants, contractors, employees, representatives, licenses,
patrons or invitees.  Nothing contained in this Section 14 shall obligate Tenant
to indemnify Landlord against Landlord's own negligence or misconduct.  The
provisions of this Section 14 shall survive the expiration or earlier
termination of this Lease.

               (ii) Landlord shall indemnify, defend (with legal counsel
selected by and consented to by Landlord), protect and hold Tenant harmless from
and against any and all claims, suits, judgments, losses, costs, obligations,
damages, expenses, interest and liabilities, including, without limitation,
reasonable attorneys' fees, resulting from the negligence of acts of Landlord,
its agents, employees and contractors.  Nothing contained in this Section 14
shall obligate Landlord to indemnify Tenant against Tenant's own negligence or
misconduct.  The provisions of this Section 14 shall survive the expiration or
earlier termination of this Lease.

          c.   PUBLIC LIABILITY AND PROPERTY DAMAGE INSURANCE:  Landlord and
Tenant, at their respective costs, shall each maintain public liability and
property damage insurance with a One Million and No/100ths Dollar
($1,000,000.00) public liability and property damage insurance policy, plus a
Five Million and No/100ths Dollars ($5,000,000.00) public liability and property
damage umbrella policy, insuring against all liability of Tenant and Landlord
and each of their authorized representatives arising out of and in connection
with Tenant's use or occupancy of the Premises.   All public liability insurance
and property damage insurance shall insure performance by Tenant and Landlord of
their indemnity provisions of Section 12.  Both parties shall be named as
additional insureds, and the policy shall contain cross-liability endorsements.

          d.   FIRE INSURANCE ON BUILDINGS AND OTHER IMPROVEMENTS:  Landlord
shall maintain on the buildings and other improvements that are a part of the
Premises a policy of standard fire and extended coverage insurance, with
vandalism and malicious mischief endorsements, to the extent of full replacement
value, with a replacement cost endorsement.  The insurance policy shall be
issued in the name of Landlord.  The insurance policy shall provide that any
proceeds shall be made payable to Landlord.


                                         -19-
<PAGE>

          f.   WAIVER OF SUBROGATION:  The parties release each other, and their
respective authorized representatives, from any claims for damage to any person
or to the Premises and to the fixtures, personal property, Tenant's
improvements, and alterations of either Landlord or Tenant in or on the Premises
that are caused by or result from risks insured against under any insurance
policies carried or required to be carried pursuant to this Lease by the parties
and in force at the time of any such damage.  Each party shall cause each
insurance policy obtained by it to provide that the insurance company waives all
right of recovery by way of subrogation against either party in connection with
any damage covered by any policy.  Neither party shall be liable to the other
for any damage caused by fire or any of the risks insured against and actually
paid upon under any insurance policy required by this Lease.  

          g.   OTHER INSURANCE MATTERS:  All the insurance required under this
Lease shall:

               (1)  Be issued by insurance companies authorized to do business
in the State of Colorado, with a financial rating of at least an A + 3A status
as rated in the most recent edition of Best's Insurance Reports. 

               (2)  Be issued as a primary policy.

               (3)  Contain an endorsement requiring thirty (30) days' written
notice from the insurance company to both parties and Landlord's lender before
cancellation or change in the coverage, scope, or amount of any policy.

               (4)  Each policy, or a certificate of the policy, together with
evidence of payment of premiums, shall be deposited with the other party at the
Commencement Date, and on renewal of the policy not less than thirty (30) days
before expiration of the term of the policy.

     15.  DESTRUCTION:

          (a)  During the term hereof, if the Premises or any part thereof shall
be damaged by fire or other casualty, Tenant shall give prompt written notice
thereof to Landlord. In case the Premises shall be so damaged by fire or other
casualty that substantial alteration or reconstruction of the Premises (which is
in excess of twenty percent (20.00%) of the Premises) shall be required if such
damage is not covered by insurance carried by Landlord, Landlord may, at its
option, terminate this Lease and the term and estate hereby granted by notifying
Tenant in writing of such termination within forty-five (45) days after the date
of such damage, in which event the Rent shall be abated as of the date of such
damage. If Landlord does not thus elect to terminate this Lease, Landlord shall,
within sixty (60) days after the date of such damage, commence to repair and
restore the Buildings and


                                         -20-
<PAGE>

shall proceed with reasonable diligence to restore the Buildings (except that
Landlord shall not be responsible for delays outside its control) to
substantially the same condition in which it was immediately prior to the
happening of the casualty, except that Landlord shall not be required to
rebuild, repair or replace any part of Tenant's furniture and furnishings or
fixtures and equipment removable by Tenant under the provisions of this Lease,
but such work shall not exceed the scope of the work done by Landlord in
originally constructing the Buildings. Tenant shall not be entitled to any
compensation or damages from Landlord, and Landlord shall not be liable, for any
loss of the use of the whole or any part of the Premises, Tenant's personal
property, or any inconvenience or annoyance occasioned by such loss of use,
damage, repair, reconstruction or restoration, except that, subject to the
provisions of the next sentence, Landlord shall allow Tenant an abatement of
Rent on a square footage basis during the time and to the extent the Premises
are unfit or unavailable for occupancy. If the Premises are damaged by fire or
other casualty resulting from the negligence of Tenant or any of Tenant's
agents, employees, or invitees, and the cost thereof is not covered and funded
by insurance maintained by Landlord, Tenant shall be liable to Landlord for the
cost and expense of the repair and restoration of the Premises caused thereby to
the extent such cost and expense is not covered by insurance proceeds. Tenant
hereby specifically waives any and all rights it may have under any law,
statute, ordinance or regulation to terminate the Lease by reason of casualty or
damage to the Premises or Buildings, and the parties hereto specifically agree
that the Lease shall not automatically terminate by law upon destruction of the
Premises.

          (b)  In the event that Landlord elects to repair any damage to the
Premises and/or Buildings (if such damage prevents Tenant from using the
Premises pursuant to this Lease), Landlord shall deliver written notice to
Tenant indicating Landlord's good faith estimate of the number of days required
to repair such damage.  If Landlord's estimate is in excess of one hundred
eighty (180) days (for a period of ten (10) days following receipt of such
notice, Tenant shall have the right, by delivery of written notice to Landlord,
to terminate this Lease, which termination shall be effective upon delivery of
such notice to Tenant by Landlord.  The failure of Tenant to provide such
written notice within such time period, shall be deemed a waiver of Tenant's
right to terminate this Lease pursuant to the preceding sentence.

          (c)  If the Premises is damaged or destroyed during the last twelve
(12) months of the Term of the Lease, and the Premises cannot be fully repaired
or restored by Landlord within sixty (60) days after the date of damage or
destruction, either Landlord or Tenant may terminate this Lease upon written
notice to the other within thirty (30) days of the date of such damage, which
termination shall become effective upon the date of receipt of such notice.


                                         -21-
<PAGE>

     16.  CONDEMNATION:

          a.   DEFINITIONS:

               (1)  "CONDEMNATION" means (a) the exercise of any governmental
power, whether by legal proceedings or otherwise, by a condemnor and (b) a
voluntary sale or transfer by Landlord to any condemnor, either under threat of
condemnation or while legal proceedings for condemnation are pending.

               (2)  "DATE OF TAKING" means the date the condemnor has the right
to possession of the property being condemned.

               (3)  "AWARD" means all compensation, sums, or anything of value
awarded, paid, or received on a total or partial condemnation.

               (4)  "CONDEMNOR" means any public or quasi-public authority, or
private corporation or individual, having the power of condemnation.

          b.   PARTIES' RIGHTS AND OBLIGATIONS TO BE GOVERNED BY LEASE:  If,
during the Initial Term or Extended Term, if applicable, there is any taking of
all or any part of the Premises or any interest in this Lease by condemnation,
the rights and obligations of the parties shall be determined pursuant to this
Section.

          c.   TOTAL TAKING:  If the Premises are totally taken by condemnation,
this Lease shall terminate on the date of taking.

          d.   PARTIAL TAKING:  If any portion of the Premises is taken by
condemnation, this Lease shall remain in effect; except that Landlord or Tenant
can elect to terminate this Lease if thirty percent (30.00%) or more of the
total square footage in either Buildings, or thirty percent (30.00%) of parking
for the Premises is taken, or if as a result of such condemnation, Tenant is
prevented from continuing Tenant's Use on the Premises due to applicable
ordinances of governmental entities or agencies having jurisdiction over the
Premises.  If Tenant or Landlord elects to terminate this Lease, such exercise
must be given by written notice to the other party within thirty (30) days after
the nature and the extent of the taking have been finally determined.  In such
event, such termination shall not be earlier than thirty (30) days nor later
than ninety (90) days after such election to terminate; except that this Lease
shall terminate on the date of taking if the date of taking falls on a date
before the date of termination as designated by Tenant.  If either party does
not terminate this Lease within the thirty (30) day period, this Lease shall
continue in full force and effect, except that Base Rent shall be abated as
provided in this Section 15.


                                         -22-
<PAGE>

               (1)  EFFECT ON RENT:  If any portion of the Buildings or parking
is taken by condemnation and this Lease remains in full force and effect, on the
date of taking the Base Rent shall be reduced by an amount that is in the same
ratio to Base Rent as the total number of square feet in the Buildings taken, or
no longer usable due to loss of parking, bears to the total number of square
feet in the Buildings immediately before the date of taking.

               (2)  RESTORATION OF PREMISES:  If there is a partial taking of
the Premises or parking and this Lease remains in full force and effect,
Landlord, at its cost, shall accomplish all necessary restoration.

               (3)  ABATEMENT OF RENT:  Rent shall be abated or reduced during
the period from the date of taking until the completion of restoration, but all
other obligations of Tenant under this Lease shall remain in full force and
effect, except to the extent otherwise provided above.  The abatement or
reduction of rent shall be based on the extent to which the restoration
unreasonably interferes with Tenant's use of the Buildings.  To the extent any
parking is effected by a taking, Tenant shall be entitled to an abatement equal
to Ten and No/100ths Dollars ($10.00) per year per parking stall effected.

          e.   AWARD-DISTRIBUTION:  The award shall belong to and be paid to
Landlord, except that Tenant shall receive directly from the condemning
authority an amount attributable to alterations made to the Premises by Tenant
in accordance with this Lease, which alterations Tenant has the right to remove
from the Premises pursuant to the provisions of this Lease but elects not to
remove; or, if Tenant elects to remove any such Tenant's improvements, an amount
not to exceed the fair market value of such alterations.  Any award by the
condemnor specifically for the loss of Tenant's business shall belong to Tenant.


                                         -23-
<PAGE>

     17.  ASSIGNMENT:

          a.   PROHIBITION AGAINST VOLUNTARY ASSIGNMENT, SUBLETTING, AND
ENCUMBERING:  Tenant shall not assign or hypothecate this Lease or any interest
herein (by operation of law or otherwise) or sublet the Premises or any part
hereof, or permit the use of the Premises by any party other than Tenant without
the prior written consent of Landlord, which consent shall not be unreasonably
withheld following Landlord's review of the items used in Section 16(1) below. 
Notwithstanding the foregoing, Tenant may assign this Lease to any corporation
which controls, is controlled by or is under common control with Tenant, or to
any corporation resulting from merger or consolidation with Tenant, or to any
person or entity which acquires all of the assets as a going concern of the
business of Tenant that is being conducted on the Premises, without the prior
consent of Landlord, provided that (i) such assignment or sublease shall in no
way release Tenant form any liability under this Lease, and (ii) such assignee
has a net worth at least equal to Tenant's net worth at the Lease Date.  

               (1)  PROCEDURE:  In the event that Tenant should desire to sublet
the Premises or any part thereof, or assign this Lease, Tenant shall provide
Landlord with written notice of such desire at least thirty (30) days in advance
of the effective date of such subletting or assignment.  Such notice shall
include (i) the name of the proposed subtenant or assignee; (ii) the nature of
business to be conducted by the proposed subtenant or assignee in the Premises;
(iii) the terms and conditions of the proposed assignment or sublease; and (iv)
the current financial statements of the proposed subtenant or assignee. 
Landlord shall not unreasonably withhold its consent to a proposed subletting or
assignment, provided that (1) the proposed subtenant or assignee is engaged in a
business which, and the Premises shall be used in a manner which, is consistent
with the permissible use set forth in this Lease; (2) the proposed subtenant or
assignee is a reputable party of reasonable financial worth in light of the
responsibilities involved and Tenant shall have provided Landlord with
reasonable proof thereof; and (3) Tenant is not in material default hereunder at
the time it makes its request for such consent.  No assignment of Tenant's
interest in this Lease shall relieve Tenant from its obligations pursuant to the
provisions of this Lease.

               (2)  PAYMENT OF ATTORNEYS' FEES:  (Intentionally Deleted)

          b.   INVOLUNTARY ASSIGNMENT:  No interest of Tenant in this Lease
shall be assignable by operation of law (including, without limitation, the
transfer of this Lease by testacy or intestacy).  Each of the following acts
shall be considered an involuntary assignment:


                                         -24-
<PAGE>

               (1)  BANKRUPTCY:  If Tenant is or becomes bankrupt or insolvent,
makes an assignment for the benefit of creditors, or institutes a proceeding
under the Bankruptcy Act in which Tenant is the bankrupt party; or, if Tenant is
a partnership or consists of more than one person or entity, if any partner of
the partnership or other person or entity is or becomes bankrupt or insolvent,
or makes an assignment for the benefit of creditors;

               (2)  ATTACHMENT:  If a writ of attachment or execution is levied
on this Lease; or

               (3)  RECEIVER:  If, in any proceeding or action to which Tenant
is a party, a receiver is appointed with authority to take possession of the
Premises.

     An involuntary assignment shall constitute a default by Tenant and Landlord
shall have the right to elect to terminate this Lease, in which case this Lease
shall not be treated as an asset of Tenant.  If a writ of attachment or
execution is levied on this Lease, Tenant shall have twenty (20) days in which
to cause the attachment or execution to be removed.  If any involuntary
proceeding in bankruptcy is brought against Tenant, or if a receiver is
appointed, Tenant shall have sixty (60) days in which to have the involuntary
proceeding dismissed or the receiver removed.

     18.  DEFAULT:

          a.   TENANT'S DEFAULT:  The occurrence of any one or more of the
following events shall constitute a default and breach of this Lease by Tenant:

               (1)  The failure by Tenant to make any payment of Base Rent or
any other payment required to be made by Tenant hereunder as and when due, where
such failure shall continue for a period of five (5) business days after
Tenant's receipt of written notice.

               (2)  Tenant's failure to observe or perform any of the covenants,
conditions, or provisions of this Lease to be observed or performed by Tenant,
other than as described in subparagraph (b) above, where such failure shall
continue for a period of thirty (30) days after written notice thereof by
Landlord to Tenant; provided, however, that if the nature of Tenant's default is
such that more than twenty (20) days are reasonably required for its cure, then
Tenant shall not be deemed to be in default if Tenant commences such cure within
said thirty (30)-day period and thereafter diligently prosecutes such cure to
completion.

               (3)  The making by Tenant of any general assignment or general
arrangement for the benefit of creditors,


                                         -25-
<PAGE>

or the appointment of a trustee or a receiver to take possession of
substantially all of Tenant's assets located at the Premises or of Tenant's
interest in this Lease, where possession is not restored to Tenant within thirty
(30) days, or the attachment, execution, or other judicial seizure of
substantially all of Tenant's assets located at the Premises or of Tenant's
interest in this Lease, where such seizure is not discharged in thirty (30)
days.

               (4)  The filing of any voluntary petition in bankruptcy by
Tenant, or the filing of any involuntary petition by Tenant's creditors, which
involuntary petition remains undischarged for a period of thirty (30) days.  In
the event that under applicable law the trustee in bankruptcy or Tenant has the
right to affirm this Lease and perform the obligations of Tenant hereunder, such
trustee or Tenant shall, in such time period as may be permitted by the
bankruptcy court having jurisdiction, cure all defaults of Tenant hereunder
outstanding as of the date of the affirmance of this Lease, and provide to
Landlord such adequate assurances as may be necessary to ensure Landlord of the
continued performance of Tenant's obligation under this Lease.

          b.   REMEDIES FOR TENANT'S DEFAULT:  In the event of Tenant's default,
following the expiration of any applicable cure periods, Landlord may:

               (1)  Terminate Tenant's right to possession of the Premises by
any lawful means, in which case this Lease shall terminate and Tenant within a
reasonable time shall immediately surrender possession of the Premises to
Landlord.  In such event, Landlord shall be entitled to recover from Tenant:

                    (a)  the amount of any unpaid rent which had been earned at
the time of such termination; plus

                    (b)  the 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 (including, without limitation, the reasonable cost of
recovering possession of the Premises, reasonable expenses of reletting
including necessary renovation and alteration of the Premises, reasonable
attorneys' fees, and real estate commissions actually paid and that portion of
the leasing commission paid by Landlord and applicable to the unexpired portion
of this Lease); plus

                    (c)  such other amounts in addition to or in lieu of the
foregoing as may be permitted at such time by applicable Colorado law.

               (2)  Continue this Lease in full force and effect, and the Lease
will continue in effect, as long as Landlord does not terminate Tenant's right
to possession, and Landlord shall


                                         -26-
<PAGE>

have the right to collect Rent when due.  During the period Tenant is in
default, Landlord may enter the Premises and relet them, or any part of them, to
third parties for Tenant's account.  Tenant shall be liable immediately to
Landlord for all costs Landlord reasonably incurs in reletting the Premises,
including, without limitation, brokers' commissions, expenses of remodeling the
Premises reasonably required by the reletting.  Reletting can be for a period
shorter or longer than the remaining term of this Lease.  Tenant shall pay to
Landlord the Rent due under this Lease on the dates the Rent is due, less the
rent Landlord receives from any reletting.  In no event shall Tenant be entitled
to any excess rent received by Landlord.  No act by Landlord allowed by this
paragraph shall terminate this Lease unless Landlord notifies Tenant in writing
that Landlord elects to terminate this Lease.  After Tenant's default and for as
long as Landlord does not terminate Tenant's right to possession of the
Premises, if Tenant obtains Landlord's consent, Tenant shall have the right to
assign or sublet its interest in this Lease, but Tenant shall not be released
from liability.  

               (3)  Cause a receiver to be appointed to collect Rent.  Neither
the filing of a petition for the appointment of a receiver nor the appointment
itself shall constitute an election by Landlord to terminate the Lease.

               (4)  Cure the default at Tenant's cost.  If Landlord at any time,
by reason of Tenant's default, reasonably pays any sum or does any act that
requires the payment of any sum, the sum paid by Landlord shall be due
immediately from Tenant to Landlord at the time the sum is paid, and if paid at
a later date shall bear interest at the lesser of ten percent (10.00%) per
annum, or the maximum rate an individual is permitted by law to charge from the
date the sum is paid by Landlord until Landlord is reimbursed by Tenant.  The
sum, together with interest on it, shall be additional Rent.

               (5)  The foregoing remedies are not exclusive; they are
cumulative, in addition to any remedies now or later allowed by law, to any
equitable remedies Landlord may have, and to any remedies Landlord may have
under bankruptcy laws or laws affecting creditors' rights generally.  The waiver
by Landlord of any breach of any term, covenant or condition of this Lease shall
not be deemed a waiver of such term, covenant or condition or of any subsequent
breach of the same or any other term, covenant or condition.  Acceptance of Rent
by Landlord subsequent to any breach hereof shall not be deemed a waiver of any
proceeding breach other than a failure to pay the particular Rent so accepted,
regardless of Landlord's knowledge of any breach at the time of such acceptance
of Rent.  Landlord shall not be deemed to have waived any term, covenant or
condition unless Landlord gives Tenant written notice of such waiver.

               (6)  Notwithstanding anything to the contrary contained elsewhere
in this Lease, Landlord shall use reasonable


                                         -27-
<PAGE>

efforts to relet the Premises to mitigate its damages under this Section 17;
provided, however, that so long as Landlord uses such reasonable efforts,
Landlord shall in no way be responsible or liable for any failure to relet the
Premises, or any part thereof, or any failure to collect any rent due upon such
reletting; and Landlord shall not be required to spend its own funds, to give
the Premises priority over or equal priority with any other facilities owned by
Landlord or its affiliates or other space available for rent in the Buildings or
to compromise in any way the terms, uses or creditworthiness of a Tenant upon or
to which it would customarily lease space such as the Premises.

     19.  SUBORDINATION; ESTOPPEL:

          a.   SUBORDINATION:  This Lease is and shall be subordinate to any
encumbrance now of record or recorded after the date of this Lease affecting the
Buildings, other improvements, and land of which the Premises are a part.  Such
subordination is effective without any further act of Tenant.  If any mortgagee,
trustee, or ground lessor shall elect to have this Lease and any options granted
hereby prior to the lien of its mortgage, deed of trust, or ground lease, and
shall give written notice thereof to Tenant, this Lease and such options shall
be deemed prior to such mortgage, deed of trust, or ground lease, whether this
Lease or such options are deeded prior or subsequent to the date of said
mortgage, deed of trust, or ground lease, or the date of recording thereof.

          b.   ATTORNMENT:  In the event any proceedings are brought for
foreclosure, or in the event of a sale or exchange of the real property on which
the Buildings is located, or in the event of the exercise of the power of sale
under any mortgage or deed of trust made by Landlord covering the Premises,
Tenant shall attorn to the purchaser upon any such foreclosure and sale and
recognize such purchaser as the Landlord under this Lease.  Tenant agrees to
execute any documents required to effectuate an attornment or to make this Lease
or any options granted herein prior to the lien of any mortgage, deed of trust,
or ground lease, as the case may be.  If Tenant fails to execute and deliver any
such documents or instruments as required hereunder, Tenant irrevocably
constitutes and appoints Landlord as Tenant's special attorney-in-fact to
execute and deliver any such documents or instruments.

          c.   NONDISTURBANCE:  Notwithstanding Section 19a, Landlord agrees
that Tenant's obligations to subordinate under this Section 19 to any existing
or future ground lease, mortgage, or deed of trust shall be conditioned upon
Tenant's receipt of a non-disturbance agreement from the holder of such
encumbrance (which party is referred to for the purposes of this Section as the
"SUPERIOR LIENOR").  Such non-disturbance agreement shall provide, at a minimum,
that Tenant's possession, and all other rights hereunder, of the Premises shall
not be interfered with


                                         -28-
<PAGE>

following a foreclosure, provided Tenant is not in default beyond any applicable
cure periods.  Landlord's obligation with respect to such a non-disturbance
agreement shall be limited to obtaining the non-disturbance agreement in such
form as the Superior Lienor generally provides in connection with its standard
commercial loans, however, Tenant shall have the right to negotiate, and
Landlord shall use its good faith efforts and due diligence in assisting Tenant
in the negotiation of, revisions to that non-disturbance directly with the
Superior Lienor.  Tenant agrees to use its good faith efforts to reach agreement
with the Superior Lienor upon acceptable terms and conditions of a
non-disturbance agreement.  

          d.   ESTOPPEL:  Either party shall, within ten (10) days after written
notice from the other party, execute and deliver to requesting party, in
recordable form, a certificate stating that this Lease is unmodified and in full
force and effect, or in full force and effect as modified, and stating the
modifications.  The certificate also shall state the amount of Base Rent, the
date to which the rent has been paid in advance, the amount of any security
deposit or prepaid rent and any other information reasonably requested by the
requesting party.  Failure to deliver the certificate within the ten (10) days
shall be conclusive that this Lease is in full force and effect and has not been
modified except as may be represented by the party requesting the certificate.

     20.  SURRENDER OF PREMISES; HOLDING OVER:

          a.   SURRENDER OF PREMISES:  On expiration or not more than
thirty (30) days after termination of the initial Term, Tenant shall surrender
to Landlord the Premises and all Tenant's improvements and alterations in good
condition (except for ordinary wear and tear), except for alterations that
Tenant has the right to remove or is obligated to remove as provided in this
Lease.  Tenant shall remove all its personal property within the above stated
time.  Tenant shall perform all restoration made necessary by removal of any
alterations or Tenant's personal property within the time periods stated in this
Section.

               (1)  Landlord can elect to retain or dispose of in any manner any
alterations or Tenant's personal property that Tenant does not remove from the
Premises on expiration or termination of the Initial Term or Extended Term, if
applicable, as allowed or required by this Lease by giving at least ten (10)
days' notice to Tenant.  Title to any such alterations or Tenant's personal
property that Landlord elects to retain or dispose of on expiration of the ten
(10) day period shall vest in Landlord.  Tenant waives all claims against
Landlord for any damage to Tenant resulting from Landlord's retention or
disposition of any such alterations or Tenant's personal property.  Tenant shall
be liable to Landlord for Landlord's


                                         -29-
<PAGE>

costs for storing, removing and disposing of any alterations or Tenant's
personal property.

          b.   HOLDING OVER:  If Tenant remains in possession of the Premises
after expiration or termination of the Initial Term or Extended Term, if
applicable, or after the date in any notice given by Landlord to Tenant
terminating this Lease, such possession by Tenant shall be deemed to be a
month-to-month tenancy terminable on thirty (30) days notice given at any time
by either party.  During any such month-to-month tenancy, Tenant shall pay an
amount equal to one hundred twenty-five percent (125.00%) of the rent required
by this Lease, prorated by the number of days of the month Tenant actually holds
over.  Except as provided in this Section, all provisions of this Lease, except
those pertaining to term and option to extend, shall apply to the month-to-month
tenancy.

     21.  ENVIRONMENTAL PROVISIONS:  Tenant shall indemnify, defend and hold
harmless Landlord, successors and assigns from and against any and all losses,
costs, claims, damages, liabilities and causes of action (including attorneys'
fees) directly or indirectly arising out of or in any way connected with the
presence, use, generation, manufacture, storage, disposal, transportation or
release of Hazardous Materials on, under or about the Premises by Tenant,
including the soils and groundwaters thereof, including, without limitation, the
cost of any required or necessary repair, clean-up, remediation or
detoxification of Hazardous Materials and the preparation of any closure,
remedial action or other required plans; provided, however, that Tenant shall be
under no obligation under this Section 20(a) with respect to any Hazardous
Materials that (i) were or under the Premises, including the soils and
groundwater thereof, prior to the Commencement Date, (ii) came upon or migrated
to the Premises, including the soils and groundwater thereof, from the land
adjacent to the Premises and not owned or controlled by Tenant, or (iii) results
from the acts or negligence of Landlord, its agents, employees, contractors or
subcontractors.  For the purposes of this Lease, "HAZARDOUS MATERIALS" shall
mean any petroleum based product, flammable explosives, asbestos, urea
formaldehyde, contamination or polluting materials, substances or wastes or any
other substances presently or hereafter defined as "hazardous substances",
"hazardous materials", "hazardous waste", "toxic substances" or "toxic waste"
under any federal, state or local statute, ordinance, rule or regulation
relating to industrial hygiene or to the environmental conditions on, under or
about the Premises, including the soil or groundwater conditions thereof. 
Tenant's obligations under the foregoing indemnity shall survive the termination
of this Lease.  Landlord acknowledges that, as will be set forth in the Approved
Final Plans, Tenant shall store certain amounts of diesel fuel for operation of
generators, which storage shall comply with Applicable Laws.


                                         -30-
<PAGE>

     22.  SIGNS:  Tenant shall have the right to place its business sign on the
Premises and the monument signage at the front entry of the Premises, provided
such signage is in compliance with the applicable ordinances of all appropriate
governmental agencies, Tenant obtains the prior written approval of Landlord
regarding the sign, which approval shall not be unreasonably withheld, and that
such signage complies with the CC&Rs (as hereinafter defined).  Tenant shall be
responsible for the cost of maintenance and repair of such signage during the
term of this Lease and the removal of such signage upon the expiration or
earlier termination of such term. 

     23.  LANDLORD'S ENTRY ON PREMISES:  Landlord and its authorized
representatives shall have the right to enter the Premises at all reasonable
times during business hours with reasonable advance notice for any of the
following purposes:

          a.   To determine whether the Premises are in good condition and
whether Tenant is complying with its obligations under this Lease;

          b.   To do any necessary maintenance or repair and to make any
restoration to the Premises that Landlord has the right or the obligation to
perform pursuant to the provisions of this Lease;

          c.   To serve, post, or keep posted any notices required or allowed
under the provisions of this Lease;

          d.   To post "for sale" signs at any time during the term, to post
"for rent" or "for lease" signs during the last three (3) months of the terms; 

          e.   To show the Premises during reasonable business hours to
prospective brokers, agents, buyers, tenants, or persons interested in an
exchange or purchase, at any time during the Initial Term or Extended Term, if
applicable.

          Landlord shall conduct its activities on the Premises as allowed in
this Article in a manner that will cause the least possible inconvenience,
annoyance, or disturbance to Tenant.  

     24.  NOTICE:  Any notice, demand, request, consent, approval, or
communication that either party desires or is required to give to the other
party or any other person shall be in writing and either served personally or
sent by certified mail, return receipt requested.  Any notice, demand, request,
consent, approval, or communication that either party desires or is required to
give to the other party shall be addressed to the other party at the address set
forth in this Lease.  Either party may change its address by notifying the other
party in writing of the change of address.  Notice shall be deemed communicated


                                         -31-
<PAGE>

within seventy-two (72) hours from the time of mailing if mailed as provided in
this Article.

     25.  RECORDATION; QUITCLAIM DEED:  Upon the Commencement Date, Landlord and
Tenant shall enter into a Memorandum of this Lease and cause such document to be
recorded as an encumbrance against the Project.  Tenant shall execute and
deliver to Landlord on the expiration or termination of this Lease, immediately
on Landlord's request, a quitclaim deed to the Premises, in recordable form,
designating Landlord as transferee.

     26.  SALE OR TRANSFER OF PREMISES:  If Landlord sells or transfers all or
any portion of the Premises, Landlord, on consummation of the sale or transfer,
shall be released from any liability thereafter accruing under this Lease,
provided that the purchaser expressly assumes Landlord's obligations hereunder,
Landlord shall provide Tenant with written notice of such transfer.

     27.  ATTORNEYS' FEES:  If Tenant or Landlord shall be in breach or default
under this Lease, such party (the "DEFAULTING PARTY") shall reimburse the other
party (the "NON-DEFAULTING PARTY") upon demand for any reasonable costs or
expenses that the Non-Defaulting Party incurs in connection with any breach or
default of the Defaulting Party under this Lease, whether or not suit is
commenced or judgment entered.  Such costs shall include legal fees and costs
incurred for the negotiation of a settlement, enforcement of rights or
otherwise.  Furthermore, if any action for breach of or to enforce the
provisions of this Lease is commenced, the court in such action shall award to
the party in whose favor a judgment is entered, a reasonable sum as attorneys'
fees and costs.  The losing party in such action shall pay such attorneys' fees
and costs.  

     28.  FIRST RIGHT OF REFUSAL:  At any time during the term of this Lease, in
the event that Landlord receives an offer to purchase the Premises upon terms
and conditions which Landlord is willing to accept, Landlord shall provide
Tenant with written notice of such offer and Tenant, for a period of ten (10)
days thereafter, shall have the right, but not the obligation, to purchase the
Premises ("FIRST RIGHT OF REFUSAL") upon the exact terms and conditions set
forth in such offer by delivery of written notice to Landlord within such ten
(10) day period.  The failure of Tenant to respond to within such time period
shall be deemed Tenant's election NOT to exercise the First Right of Refusal. 
If Tenant does not elect to exercise the First Right of Refusal, and such
transaction was not closed within one hundred twenty (120) days thereafter, all
subsequent offers to purchase the Premises which are acceptable to Landlord
shall be subject to the provisions of this Section.  Notwithstanding the
foregoing, if Tenant is in default at the time of its exercise of the First
Right of Refusal, such exercise shall be null and void.


                                         -32-
<PAGE>

     29.  PRIVATE OPTION TO EXPAND:  At anytime during the first eighteen (18)
months following the Commencement Date, Tenant shall have the right to expand
the Premises ("OPTION TO EXPAND") to include the entire rentable square footage
("EXPANSION PREMISES") located on the second floor of the Building in which the
329 Premises is located, or any portion thereof, by providing Landlord with
written notice ("EXPANSION NOTICE") of such election on or before the expiration
of such eighteen (18) month period.  If Tenant elects to lease less than all of
the Expansion Premises, the rentable area of such portion shall not be less than
five thousand (5,000) square feet, and the location and configuration of such
leased portion shall be reasonably acceptable to Landlord.  Tenant shall be
entitled to multiple exercises of the Option to Expand subject to the
limitations of the preceding sentence.  Upon agreement of the Approved Final
Plans, Landlord and Tenant shall attach to this Lease as an Exhibit a
description of the Expansion Premises, which Exhibit shall be initialed by both
parties.  The failure of Tenant to deliver the Expansion Notice on or before the
expiration of such eighteen (18) month term shall be deemed Tenant's waiver of
its right to exercise the Option to Expand and Landlord shall be free to lease
to any third party the Expansion Space.

          a.   If Tenant elects to exercise its Option to Expand, the Expansion
Premises shall be deemed to be leased under all the terms and conditions of this
Lease and shall constitute a portion of the "Premises" for all purposes, and the
term of Tenant's lease of the Expansion Premises shall be coterminous with the
term of this Lease with respect to the original Premises.  The date on which the
Expansion Premises is Ready for Occupancy pursuant to subparagraph (d) below, is
hereinafter referred as the "OCCUPANCY DATE."  Landlord and Tenant shall execute
an amendment to this Lease evidencing the lease of the Expansion Premises.

          b.   The Base Rent for the Expansion Premises shall be the then
current Base Rent which Tenant is obligated to pay for the original Premises, on
a per square foot of rentable area basis, and shall be subject to increase at
the same times and in the same manner as Base Rent is adjusted pursuant to this
Lease.  Tenant's obligation to pay Base Rent with regard to the Expansion
Premises shall commence on the Occupancy Date.

          c.   As a condition to Tenant's right to expand into the Expansion
Premises, Tenant shall not be in default under this Lease, beyond any applicable
cure period.

          d.   Landlord agrees to construct leasehold improvements to the
Expansion Premises subject to the limitations of this subsection.  The maximum
amount of the allowance to be expended by Landlord shall be an amount equal to
the per square foot cost of the tenant improvements installed at the original
Premises by Landlord pursuant to this Lease.  Prior to the


                                         -33-
<PAGE>

commencement of such work by Landlord, Tenant and Landlord shall enter into a
work letter agreement which shall be in a form reasonably acceptable to Landlord
and Tenant.

          e.   As of the Occupancy Date, the Tenant's Proportionate Share used
for purposes of calculating Operating Expenses shall be increased in order to
reflect the addition of the Expansion Premises.

     30.  MISCELLANEOUS PROVISIONS:

          a.  CC&RS:  Tenant agrees to comply with the provisions of any and all
covenants, conditions and restrictions (collectively, "CC&RS"), which encumber
the Premises as of the Lease Date, and any amendments, additions or
modifications thereto in which Tenant has been provided written notice of by
Landlord.  The CC&Rs and any amendments, additions or modifications thereto
shall not adversely affect the Tenant's use of the Premises for general office
purposes.

          b.  TIME OF ESSENCE:  Time is of the essence of each provision of this
Lease.

          c.  AUTHORITY:  Each party represents that it has the authority to
enter into the transaction described herein.

          d.  SUCCESSORS:  This Lease shall be binding on and inure to the
benefit of the parties and their successors.

          e.  REAL ESTATE BROKERS:  Each party represents that it has not had
dealing with any real estate broker, finder, or other person, with respect to
this Lease in any manner, except as set forth in the Basic Lease Information. 
Each party shall hold harmless the other party from all damages resulting from
any claims that may be asserted against the other party by any other broker,
finder, or other person, with whom the other party has or purportedly has dealt.

          f.  EXHIBITS:  All exhibits referred to are attached to this Lease and
incorporated herein by reference.

          g.  COLORADO LAW:  This Lease shall be construed and interpreted in
accordance with the laws of the State of Colorado.

          h.  WAIVER:  The waiver by either party of any breach of any term,
covenant or condition herein contained shall not be deemed to be a waiver of any
subsequent breach of the same or any other term, covenant or condition herein
contained, nor shall any custom or practice which may grow up between the
parties in the administration of the terms hereof be deemed a waiver of, or in
any way affect, the right of either party to insist upon the performance by the
other party in strict accordance with said


                                         -34-
<PAGE>

terms.  The subsequent acceptance of rent hereunder by Landlord shall not be
deemed to be a waiver of any preceding breach by Tenant of any term, covenant or
condition of this Lease, other than the failure of Tenant to pay the particular
rent so accepted, regardless of Landlord's knowledge of such preceding breach at
the time of acceptance of such rent.

          i.  EXECUTION:  Submission of this instrument for examination or
signature by Tenant does not constitute a reservation of or an option for lease,
and it is not effective as a lease or otherwise until execution and delivery by
both Landlord and Tenant.

          j.  PROVISIONS ARE COVENANTS AND CONDITIONS:  All provisions, whether
covenants or conditions, on the part of Tenant and Landlord, shall be deemed to
be both covenants and conditions.

          k.  SINGULAR AND PLURAL:  When required by the context of this Lease,
the singular shall include the plural.

          l.  JOINT AND SEVERAL OBLIGATIONS:  "PARTY" shall mean Landlord and
Tenant; and if more than one person or entity is Landlord or Tenant, the
obligations imposed on that party shall be joint and several.

          m.  SEVERABILITY:  The unenforceability, invalidity, or illegality of
any provision shall not render the other provisions unenforceable, invalid, or
illegal.

          n.  CAPTIONS:  The captions of this Lease shall have no effect on its
interpretation.

          o.  NEGATION OF PARTNERSHIP:  The parties shall not become or be
deemed partners or joint venturers with each other by reason of the provisions
of this Lease.

          p.  MORTGAGEE PROTECTION CLAUSE:  Tenant agrees to give any mortgagees
and/or trust deed holders, by registered mail, a copy of any notice of default
served upon the Landlord, provided that prior to such notice Tenant has been
notified in writing (by way of notice of assignment of lease, or otherwise) of
the addresses of such mortgagees and/or trust deed holders.  Tenant further
agrees that if Landlord shall have failed to cure such default within the time
provided for in this Lease, then the mortgagees and/or trust deed holders shall
have an additional thirty (30) days within which to cure such default, or if
such default cannot be cured within that time, then such additional time as may
be necessary, provided such mortgagees and/or trust deed holders commence such
cure within thirty (30) days and diligently pursue the remedies necessary to
cure such default (including, but not limited to, commencement of foreclosure


                                         -35-
<PAGE>

proceedings, if necessary to effect such cure), in which event this Lease shall
not be terminated while such remedies are being so diligently pursued.

          q.  TENANT FINANCING:  Tenant shall not mortgage or encumber the
leasehold estate created by this Lease without Landlord's prior consultation,
review and consent.  Landlord may give or withhold such consent in Landlord's
reasonable discretion.  Tenant acknowledges that fixtures and equipment
incorporated in or affixed to the Premises, to the extent paid for by the
Allowance, constitute real property improvements to be surrendered upon
termination of the Lease.

          r.  LIMITATION ON LIABILITY:  In consideration of the benefits
accruing hereunder, Tenant and all successors and assigns covenant and agree
that, in the event of any actual or alleged failure, breach or default hereunder
by Landlord:  (1)  Tenant's sole and exclusive recourse shall be against
Landlord's interest in the Project and the income generated by the Project. 
Tenant shall not have any right to satisfy any judgment which it may have
against Landlord from any other assets of Landlord; (2)  No partner,
stockholder, director, officer, employee or beneficiary or trustee
(collectively, "Partner") of Landlord shall be sued or named as a party in any
suit or action (except as may be necessary to secure jurisdiction over
Landlord); (3)  No service of process shall be made against any Partner of
Landlord (except as may be necessary to secure jurisdiction over Landlord);
(4)  No Partner of Landlord shall be required to answer or otherwise plead to
any service of process; (5)  No judgment will be taken against any Partner of
Landlord; (6)  Any judgment taken against any Partner of Landlord may be vacated
and set aside at any time nunc pro tunc; (7)  No writ of execution will ever be
levied against the assets of any Partner of Landlord; and (8)  These covenants
and agreements are enforceable both by Landlord and also by any Partner of
Landlord.

          s.  MODIFICATION FOR LENDER:  If, in connection with obtaining
construction, interim or permanent financing for the Buildings, the lender shall
request reasonable modifications in this Lease as a condition to such financing,
Tenant will not unreasonably withhold, delay or defer its consent thereto,
provided that such modifications do not increase the obligations of Tenant
hereunder or materially adversely affect the leasehold interest hereby created
or Tenant's rights hereunder.

          t.  ACCORD AND SATISFACTION; APPLICATION OF DELINQUENT PAYMENTS:  No
payment by Tenant or receipt by Landlord of a lesser amount than the rent
payment herein stipulated shall be deemed to be other than on account of the
rent, nor shall any endorsement or statement on any check or any letter
accompanying any check or payment as rent be deemed an accord and satisfaction,
and Landlord may accept such check or payment without prejudice to Landlord's
right to recover the balance of


                                         -36-
<PAGE>

such rent or pursue any other remedy provided in this Lease.  No endorsement on
any check nor any letter accompanying any check or payment of rent or partial
payment thereof, shall prevent Landlord from treating such payment as on account
of the earliest delinquent sum owed Landlord, and Tenant waives the benefit of
any contrary court decision or statute (including, without limitation, Civil
Code Section 1479).

          u.  NO CONSTRUCTION AGAINST DRAFTER:  The provisions of this Lease
shall be construed in accordance with the fair meaning of the language used and
shall not be strictly construed against either party.  If the parties delete any
provision appearing in the original draft of this Lease, this Lease will be
interpreted as if the deleted language were never a part of this Lease.

          v.  INDEPENDENT COVENANTS:  Each covenant, agreement, obligation or
other provision of this Lease to be performed by Tenant is a separate and
independent covenant of Tenant, and not dependent on the performance of
Landlord's obligations hereunder.

          w.  ENTIRE AGREEMENT:  The terms of this Lease are intended by the
parties as a final expression of their agreement with respect to such terms as
are included in this Lease and may not be contradicted by evidence of any prior
or contemporaneous agreement.  The parties further intend that this Lease
constitutes the complete and exclusive statement of its terms and that no
extrinsic evidence whatsoever may be introduced in any judicial proceedings, if
any, involving this Lease.

          y.   CONSENTS:  Except as expressly provided in this Lease, any
consent or approval requested under this Lease by either Tenant or Landlord
shall be granted or withheld in such party's reasonable discretion.

          z.   ASSIGNMENT BY LANDLORD:  Landlord shall have the right to assign
its interest in this Lease to any limited liability company, partnership, or
corporation in which Carl D. Panattoni and Benjamin S. Catlin maintain a
controlling interest therein.

          aa.  LEASE REVIEW SUBCOMMITTEE:  Notwithstanding anything to the
contrary contained in this Lease, Tenant's obligations hereunder are expressly
contingent upon obtaining  its Lease Review Subcommittee's approval of the
transaction described herein by 5:00 p.m. M.S.T., Monday, March 17, 1997.  In
the event Tenant is unable to obtain such approval by such time, this Lease
shall become null and void.


                                         -37-
<PAGE>

LANDLORD:                               TENANT:

PANATTONI-CATLIN VENTURE, a             ACCESS HEALTH, INC., a
California general partnership          Delaware corporation


By:                                     By:
   --------------------------------        --------------------------------
Its:                                    Its:
    -------------------------------         -------------------------------
Date:                                   Date:
     ------------------------------          ------------------------------




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