Document:

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                                                                   Exhibit 10.13

                                   SUBLEASE
                                   --------

     THIS AGREEMENT (this "Sublease") made the 18/th/ day of June, 1999, between
                                               ----------    ----
BELLSOUTH MOBILITY INC having an office at 1101 Greenwood Blvd., Lake Mary,
-----------------------------              --------------------------------
Florida, hereinafter referred to as "Sublessor", and SEAGATE SOFTWARE, INC, a
-------                                              ---------------------
Delaware corporation, having an office at 4575 Scotts Valley Drive, Scotts
Valley, California 95066, hereinafter referred to as "Sublessee".

     Any capitalized terms not defined herein retain the definitions given them
     --------------------------------------------------------------------------
in the Prime Lease
------------------

                             W I T N E S E T H:

     WHEREAS, Sublessor, is the Sublessee of certain office space located at
1101 Greenwood Blvd., Suite 150, Lake Mary, Florida, (the "Premises") pursuant
----------------------------------------------------
to that certain Lease Agreement with Hurstbourne Green Venture Orlando, LLC, as
                                     --------------------------------------
Lessor, dated June 24, 1996, as amended by that certain n/a dated n/a; the
              -------------                             ---       ---
"Prime Lease") and

     WHEREAS, the parties hereto have agreed that Sublessor shall sublet
approximately 11,063 square feet of such space to Sublessee;
              ------

     NOW, THEREFORE, the parties hereto hereby covenant and agree as follows:

     1.  Sublessor hereby leases to Sublessee the 11,063 square feet, more or
                                                  ------
less, of the space at said Premises, shown on Exhibit A attached hereto and made
a part hereof, for a term of five year beginning the earlier of July 1, 1999 or
fifteen (15) business days from Sublessor's approval of the sublease document
and receipt of a certificate of occupancy, and ending June 30, 2004, unless
sooner terminated in accordance herewith, yielding and paying to Sublessor a
rent at the rate of Two hundred fifteen thousand seven hundred twenty-eight and
                    -----------------------------------------------------------
50/100 ($215,728.50) Dollars per annum, plus sales tax and any additional rent
------                                       -------------
mentioned in paragraph 4. First months rent shall be due upon lease execution.
The lease rate shall increase by 3% each year on the anniversary date of the
sublease.

     Sublessee shall pay the rent and additional rent provided for hereunder in
equal monthly installments in advance and without demand on the first day of
each and every month during the term.

     2.  The Premises under this Sublease are to be used by Sublessee as space
primarily for the conduct of the business of operating a software company.
Sublessee shall not use the Premises for any illegal, immoral or hazardous
activity or in contradiction of any City, County or State ordinance of law,
whether within or outside the scope of business of Sublessee.

     3.  Sublessee shall not have the right to assign this Sublease or further
sublease the Premises in whole or in party without first obtaining the written
consent of the Sublessor and the

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Landlord, which consent shall not be unreasonably withheld or delayed. Such
permitted assignment or subletting shall not release Sublessee from its
obligations and liabilities under the terms and conditions of this Sublease.

     However, Sublessee shall not be required to obtain the consent of either
the Sublessor or Landlord for any assignments of this Sublease or any part of
this Sublease to any affiliate, any subsidiary, principal, subsidiary of its
principal, or to any company with which Sublessee is merged or consolidated.
Such permitted assignment but not sublease shall release Sublessee from its
obligations and liabilities under the terms and conditions of this Sublease, and
replace Assignee with all obligations and liabilities under the terms and
conditions of this Sublease.

     4.  If Sublessor shall be charged for additional rent or other sums
pursuant to the provision of the Prime Lease, Sublessee shall be liable for 100%
of such additional rent or sums over the 1999 base year estimated by Sublessor
to be $6.54/SF, such additional rent shall not increase by more than three
percent (3%). If any such rent or sums shall be due as a result of Sublessee's
use, such excess shall be paid in entirety by Sublessee. If Sublessee shall
procure any additional services Sublessee shall pay for same at the rates
charged therefor by the Prime Landlord and shall make such payment to the
Sublessor or Prime Landlord, as Sublessor shall direct. Any rent or other sums
payable by Sublessee under this Paragraph 4 shall be additional rent and
collectable as such. Such additional rent due pursuant to this Paragraph 4 shall
be paid monthly if Sublessor is required to make such payments monthly.

     5.  This Sublease is subject to and subordinate to the Prime Lease. Except
as may be inconsistent with the terms hereof, all the terms, covenants, and
conditions in the Prime Lease shall be applicable to this Agreement with the
same force and effect as if Sublessor were the lessor under the Prime Lease and
Sublessee were the lessee thereunder; and in case of any breach hereof by
Sublessee, Sublessor shall have all the rights against Sublessee as would be
available to the lessor against the lessee under the Prime Lease if such breach
were by the lessee thereunder.

     6.  Notwithstanding anything herein contained, the only services or rights
to which Sublessee is entitled hereunder are those to which Sublessor is
entitled under the Prime Lease and that for all such services and rights
Sublessee will look to the lessor under the Prime Lease.

     7.  Neither Sublessor nor Sublessee shall neither do nor permit anything to
be done which would cause the Prime Lease to be terminated or forfeited by
reason of any right of termination or forfeiture reserved or vested in the
lessor under the Prime Lease, and both parties shall indemnify and hold the
other harmless from and against all claims of any kind whatsoever by reason of
any breach or default on the part of Sublessee by reason of which the Prime
Lease may be terminated or forfeited.

     8   Sublessee shall not be required to submit a security deposit.

     9.  Sublessee is and shall be in exclusive control and possession of the
Premises except for areas in common usage as provided herein, and excepting the
common use areas, in no

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event shall the Sublessor be liable for any injury or damage to any property or
to any person happening on or about the Premises, nor to any property of
Sublessee or of any other person contained therein. Sublessee agrees to
indemnify Sublessor against any claim (including costs and reasonable attorneys'
fees) made against Sublessor for any such liability excepting however those
claims or damages as may be due to or caused by the Sublessor, its servants,
employees, agents or contractors. Sublessor shall indemnify and hold Sublessee
harmless against any claim of liability or loss from personal injury or property
damages resulting from or arising out of the use and occupancy of the common
areas by the Sublessor, its servants, employees, agents or contractors,
excepting however those claims or damages as may be due to or caused by the
Sublessee, its servants, employees, agents or contractors. The indemnifications
contained in this Paragraph shall survive the termination or expiration of this
Sublease.

     10.  Sublessor shall be allowed to enter upon and into the Premises at any
and all times if due to an emergency. In all other instances, the Sublessee
shall permit, upon forty-eight (48) hours advance notice to Sublessee, the
Sublessor to enter and inspect the Premises for the purpose of enabling the
Sublessor to be informed as to whether Sublessee is complying with the terms and
conditions of the lease and any modifications thereof which are made a part
hereof and to do the acts that Sublessee shall fail to do, or for the purpose of
showing the premises to any prospective sublessees within 6 months of
termination. Sublessor shall be allowed to enter the premises

     11.  Sublessee represents that it has read and is familiar with the terms
of the Prime Lease which is attached as Exhibit "B" and made part of this
Sublease document.

     12.  All prior understandings and agreements between the parties are merged
within this Agreement, which alone fully and completely sets forth the
understanding of the parties; and this Sublease may not be changed or terminated
orally or in any manner other than by an agreement in writing and signed by the
party against whom enforcement of the change or termination is sought.

     13.  Any notices or demands which are required by law or under the terms of
this Agreement shall be given or made by Sublessor or Sublessee in writing and
shall be given by hand delivery, telegram or other similar communication or sent
via facsimile followed by an original hard copy or by certified or registered
mail, or by a national overnight receipted delivery services which provides
signed acknowledgments of receipt (including Federal Express, UPS, Emery,
Purolator, DHL, Airborne and other similar courier delivery services) and
addressed to the respective parties set forth below. Such notices shall be
deemed to have been given in the case of telegrams or similar communications
when sent; in the case of certified or registered mail when deposited in the
United States mail with postage prepaid, and in the case of overnight receipted
delivery service the day the notice is deposited with the overnight delivery
service. Every notice, demand, or request hereunder shall be sent to the
addresses listed below:

          If to Sublessor:     BellSouth Mobility
                               1101 Greenwood Blvd.
                               Lake Mary, FL 32746

                                       3
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          With a copy for
          legal notices only:  BellSouth Mobility Inc
                               1100 Peachtree Street NE, Suite 910
                               Atlanta, GA 30309
                               Attention: Legal Department

          If to Sublessee,
          as follows:          Seagate Software, Inc.
                               4575 Scotts Valley Drive
                               Scotts Valley, California 05066
                               Attention: Denise Trudeau

     Either party may, upon thirty (30) days written notice, direct that future
notices or demands be sent to a different address.

     14.  Sublessor represents and warrants to the best of its knowledge to
Sublessee that the Premises are in good working condition and that the Sublessor
knows of no material structural defect, defect of the utility facilities or
defect in the conditions of the Premises or the building which would materially
adversely affect Sublessee use of the Premises. Sublessee agrees to accept
Premises in `as-is' condition, provided that the Sublessee shall have sixty (60)
days from the commencement date to advise Sublessor of any defects in the
Premises and Sublessor shall promptly correct such defects at Sublessor's sole
expense, unless such defects are due to the negligence or willful misconduct of
Sublessee. Sublessor shall provide an improvement allowance of up to $55,325.00
for improvements to the Premises. Improvements shall be coordinated through the
building property manager ("CRM") and all improvements are subject to the
approval of Sublessor and Landlord. All improvements shall be coordinated and
managed by CRM. Sublessee shall submit to CRM a list of contractors that they
wish to have bid requests submitted to for the improvement work. Sublessor and
CRM shall approve the contractors which Sublessee has submitted, such approval
shall not be unreasonably withheld. Sublessee shall submit to CRM and Sublessor
for approval, Sublessor's proposed plans and specifications to CRM and
Sublessor, CRM and Sublessor shall not unreasonably withhold approval thereof.
CRM and Sublessor will notify Sublessee within fifteen (15) days of receipt of
proposed plans for approval or denial, if Sublessee does not receive approval,
Sublessee shall consider non-notification as approval.

     Sublessee at Sublessee's expense may make alterations/improvements to the
Premises without Sublessor's or CRM's approval provided they do not involve the
structural integrity of the Premises or Sublessor's ability to sublease the
Premises in the future.

     15.  Provided Sublessee is not in default, Sublessee shall have one (1)
two-year option to renew the Sublease at terms consistent with comparable
buildings in the Lake Mary market. Sublessee must provide written notice of its
intent to renew six months prior to the expiration of the Sublease.

                                       4
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     16.  Provided Sublessee is not in default, Sublessee shall have a one-time
option to terminate sublease effective June 30, 2002 (the "Early Termination
Date"), as though such date were the original expiration date set forth in this
Sublease, but only by complying strictly with the following conditions: (I)
Sublessee shall deliver to Sublessor written notice (Sublessee's Exercise
Notice") exercising such option no later than January 31, 2002 (the "Latest
Exercise Date"), (ii) such notice shall include a check in good funds payable to
Sublessor in an amount equal to unamortized leasing commissions, unamortized
Sublessee improvements and an amount equal to five months rent (the
"Cancellation Payment"), as a cancellation fee and not as liquidated damages or
a penalty, and (iii) Sublessee shall continue to timely pay all rentals and
other charges under the Sublease and comply with each and every terms and
provision hereof accruing through the Early Termination Date. The Cancellation
Payment shall be calculated using straight-line amortization with an interest
rate of 10% per annum. Sublessee shall pay such amount with fifteen days prior
to the effective termination date. Under no circumstances whatsoever shall the
assignee under a complete or partial assignment of the Sublease or a sublessee
under a sublease of the Premises, have any right to exercise the option herein.
If Sublessee shall sublease or assign the Sublease with respect to all or any
portion of the Premises, then immediately upon such sublease or assignment the
rights herein shall concurrently terminate and become null and void.
Notwithstanding any contained herein to the contrary, should Sublessee sub-
sublet or assign all or a portion of the Premises to an affiliate, parent
company or subsidiary, this termination shall survive and remain in full force
and effect. Sublessee's option hereunder shall, at Sublessor's election,
terminate if Sublessee is in violation of the Sublease at the time Sublessee
seeks to exercise such option, or at any time thereafter and prior to the Early
Termination Date (or if Sublessee's Cancellation Payment hereunder is returned
for insufficient funds). Sublessee's exercise of such option shall not operate
to cure any violation by Sublessee of any of the terms or provisions in the
Sublease, nor to extinguish or impair any rights or remedies of Sublessor
arising by virtue of such violation.

     17.  Subject to the terms of the Prime Lease, if permitted thereby and as
outlined below Sublessor hereby grants to Sublessee a right of first refusal
(the "Refusal Right") with respect to the remaining 9,994 square feet on the
first floor, as outlined in Exhibit A attached hereto (the "Refusal Space").

          Provided Sublessee is in possession of entire original premises and is
not in default on the sublease, Sublessee shall have the right to lease the
Refusal Space (9,994 SF) on the then-current terms and conditions outlined in
the original sublease, except for any improvement allowance. Sublessee shall
accept the space in as-is condition.

          With respect to the Refusal Space, Sublessor shall notify Sublessee in
 writing of its intent to sublease all or part of the Refusal Space.

          Sublessee shall have a period of five (5) business days from the date
of Sublessor's notification to elect whether it shall exercise its Refusal
Right. If Sublessee wishes to exercise its Refusal Right and so notifies
Sublessor within the aforesaid five (5) business days period, then Sublessor and
Sublessee shall execute an amendment to this Sublease with five (5)

                                       5
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business days thereafter setting forth all relevant terms pertaining to the
Refusal Space and terms for the Sublease Renewal, including base rent,
commencement, and expiration date.

          If Sublessee no longer has the Refusal Right pursuant to other
provisions of the Sublease, or fails to exercise within the five (5) business
days exercise period or fails to enter into an amendment with the five (5)
business days execution period, then the Refusal Right shall thereupon and
thereafter be null, void and of no further force or effect.

          Sublessor grants to Sublessee this Refusal Right specifically due to
the character and nature of Sublessee. As such, if Sublessee shall, during the
Sublease Term, or any extension thereof, assign or sublet any or all of the
Premises, this right shall not pass to any assignee or subSublessee by or
through an assignment or sublease and shall terminate as of the date of
execution of any assignment or sublease.

     18.  Sublessee and Sublessor each represent and warrant to the other that
it has had no dealings with any real estate broker or agent in connection with
this Sublease, other than CB Richard Ellis, Inc. which, as disclosed to each
party, represents the Sublessor and Grubb & Ellis and Equis co-representing the
Sublessee, and that neither party knows of no other real estate broker or agent
who is or might be entitled to a commission in connection with this Sublease.
Sublessee and Sublessor each agree to indemnify, defend and hold the other
harmless from all costs and liabilities, including reasonable attorneys fees and
costs arising out of or in connection with claims made by any other broker or
individual who alleges that it is entitled to commissions or fees with regard to
this Sublease as a result of dealing it had with the indemnifying party.
Sublessor is paying the brokerage fee by separate agreement.

     19.  The covenants and agreements herein contained shall bind and inure to
the benefit of Sublessor, the Sublessee, and their respective executors,
administrators, successors and assigns.

     20.  Sublessor at its sole cost and expense shall provide Sublessee with a
Telephone Demark suitable for terminating T1 and analog phone lines on the 1/st/
floor (adjacent to premises) of the building prior to the commencement date of
this Sublease. Sublessee will have 7 x 24 access to the Telephone Demark point.

     21.  Sublessor will allow Sublessee to utilize its UPS interconnects
through its system located on the 4/th/ floor, however Sublessee shall not have
physical access to the 4/th/ floor. Sublessee will pay for any costs associated
with the utilization of the UPS system.

     22.  Sublessee may use Sublessor's security system, without modification or
change to the actual system, however Sublessee shall be allowed to modify and
regulate its access to the Premises to meet its needs. Sublessee shall be
required to obtain badges from CRM for all employees, agents or contractors who
have access to the Premises. Sublessee shall look to CRM for maintenance and
repair of the security system.

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     23.  Sublessor, at its sole cost and expense, will clear the low voltage
conduits from the Premises within 7 days of Sublessee's execution of this
Sublease document.

     24.  Sublessor shall provide a minimum of 45 KVA power to the Premises for
Sublessee. Any KVA power required and used by the Sublessee shall be at the sole
cost and expense of Sublessee. Any other utilities and services provided to
Sublessor in Section 5.1 of the Prime Lease shall also be provided to Sublessee.

     25.  Sublessor agrees that if Sublessee is not in material default of any
of the obligations contained in this Sublease herein, Sublessee shall at all
times during the existence of this Sublease, renewals or extensions thereof,
shall peaceably and quietly, have hold, and enjoy the Premises, without suit,
trouble or hindrance form the Sublessor, or to any persona claiming under
Sublessor.

     26.  Sublessor shall provide to Sublessee space for Sublessee's
identification on all building directories and shall identify Sublessee and its
location at the Premises, if available, by signage in the lobby in the building.
The signage for the Sublessee shall be mutually acceptable to Sublessor,
Sublessee and CRM and shall be at the expense of Sublessee.

     27.  Sublessor shall provide to Sublessee a parking ratio of six spaces for
every one thousand (1,000) square feet leased by Sublessee under this Sublease.

     28.  Sublessor represents to the best of its knowledge to Sublessee by
execution and delivery of this Sublease that: (i) There are no defaults under
the Prime Lease; (ii) there are not know conditions which with the passage of
time would constitute a default under the Prime Lease; (iii) the attached lease
included as Exhibit "B" constitutes a true and correct copy of the Prime Lease;
and (iv) in the event of default under the Prime Lease, Landlord shall accept
rent from Sublessee for the premises as provided by this Sublease and shall not
disturb Sublessee's enjoyment of the Premises, unless, following written notice
and expiration of the applicable cure period, Sublessee remains in default under
this Sublease.

     IN WITNESS WHEREOF, the parties hereto have caused these present to be
executed the day and year first above written.

SUBLESSOR:                                    SUBLESSEE:

BELLSOUTH MOBILITY INC                        SEAGATE SOFTWARE, INC.

By: /s/                                       By: /s/ Ellen E. Chamberlain
    ----------------------------                  -----------------------------

Title: CHIEF FINANCIAL OFFICER                Title: Vice President
       -------------------------                     --------------------------

Date: 7/10/99                                 Date: 6/23/99
      --------------------------                    ---------------------------

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                                 [FLOOR PLAN]
<PAGE>

              [Exhibit A to be attached, showing subleased space]

                                       8
<PAGE>

                                     LEASE

THE PARTIES

     THIS LEASE, made and entered into this 24/th/ day of June, 1996, by and
between:

     HURSTBOURNE GREEN VENTURE ORLANDO, LLC
     201 West Short Street, Suite 701
     Lexington, Kentucky 40507

     hereinafter "Landlord"; and

     BELLSOUTH MOBILITY INC
     5600 Glenridge Drive, Suite 201 East
     Atlanta, Georgia 30342

     hereinafter "Tenant".

                             W I T N E S S E T H:

A.   PREMISES

     That for and in consideration of the mutual covenants contained herein, and
     other good and valuable consideration, Landlord does hereby let and demise
     unto Tenant, and Tenant does hereby lease and rent from Landlord, the
     Leased Premises generally described as:

     Being a five (5) story office building with 157,358 square feet located in
     the North Point Park of Commerce, Lake Mary, Seminole County, Florida (the
     "Building"), and the surrounding improvements located on the real property,
     being hereinafter shown and described as Exhibit "A" of this Lease (the
                                              -----------
     "Leased Premises").

B.   BUILDING STANDARDS

     In regard to these Leased Premises, the parties acknowledge that any and
     all improvements made, now or in the future, within the Building shall
     conform to Landlord's design and construction criteria referenced in the
     Request for Proposal attached as Exhibit "B".
                                      -----------
<PAGE>

C.   BUILDING SHELL

     The office building shell, which shall be constructed by Landlord or
     Landlord's contractors under Landlord's supervision and shall include the
     items referenced on Exhibit "C" (hereinafter the "Building Shell").
                         -----------
D.   TENANT IMPROVEMENTS

     The improvements to the Leased Premises in addition to the Building Shell
     (hereinafter the "Tenant Improvement") will be constructed by the Landlord,
     or Landlord's contractor under the Landlord's supervision, in accordance
     with the plans submitted to the Landlord by Tenant pursuant to Paragraph
     4.2. All costs incurred in connection with such construction, to the extent
     of $18.00 per square foot for a total of $2,832,444.00, shall be paid by
     Landlord. The costs of any Tenant Improvements, change orders and Lessee
     authorized "extras" made to the Leased Premises in excess of $2,832,444.00
     shall be at the expense of the Tenant and shall be payable within ten (10)
     days from billing.

                                   ARTICLE I

                                     TERM

1.1  INITIAL TERM

     The term of the Lease shall be one hundred eighty (180) months. The
     commencement date of this Lease will be fifteen (15) days after the date
     Landlord's contractor turns the Leased Premises over to Tenant for
     occupancy (the "Commencement Date") which is projected to be May 31, 1997.

1.2  EXTENSION OF TERM

     Tenant shall have four (4) options to extend this Lease for periods of
     sixty (60) months each, said options to be subject to all the terms and
     conditions of this Lease and provided that (a) written notice of Tenant's
     desire to exercise same is provided to Landlord at least one hundred eighty
     (180) days prior to the expiration date of the then existing term; (b)
     there are no defaults of the covenants and conditions on the part of Tenant
     to be performed at the time of such exercise; (c) all Rents and Additional
     Rent which have accrued up to that time have been paid in full, and (d) the
     Rents during the extended terms are adjusted pursuant to Paragraph 2.2.

                                       2
<PAGE>

                                  ARTICLE II

                                     RENT

2.1  DURING INITIAL TERM

     The Tenant covenants and agrees to pay to Landlord as base rent (the
     "Rent") for the Leased Premises per the Rent schedule listed below:

          YEARS              ANNUAL                   MONTHLY
          -----              ------                   -------
            1           $1,981,137.22               $165,094.77

            2           $2,000,948.59               $166,745.72

            3           $2,020,958.08               $168,413.17

            4           $2,041,167.66               $170,097.31

            5           $2,061,579.34               $171,798.28

            6           $2,092,503.03               $174,375.25

            7           $2,123,890.57               $176,990.88

            8           $2,155,748.93               $179,645.74

            9           $2,188,085.16               $182,340.43

           10           $2,220,906.44               $185,075.54

           11           $2,254,220.04               $187,851.67

           12           $2,288,033.34               $190,669.45

           13           $2,322,353.84               $193,529.49

           14           $2,357,189.15               $196,432.43

           15           $2,392,546.98               $199,378.92

     The Rent is payable in advance, along with any sales, use or excise tax on
     the Rent, and without notice, on the first day of each month for the entire
     term of this Lease, said Rent to begin on the Commencement Date. In the
     event any Rent is unpaid after the tenth day of any calendar month, at
     Landlord's option, a service charge of two percent (2%) for each month that
     such Rent remains unpaid shall be paid.

2.2  RENT DURING EXTENDED TERMS

     In the event that the term of this Lease is timely extended pursuant to
     Paragraph 1.2, the Rent payable by the Tenant during the extended terms(s)
     shall be increased annually at a rate of 2.25% of the anniversary date of
     the Commencement Date.

                                       3
<PAGE>

2.3  ADDITIONAL RENT

     Tenant agrees to pay to Landlord, as "Additional Rent" the Operating
     Expenses as defined in Exhibit "D", payable in monthly installments on the
                            ----------
     first day of each month for the entire term of this Lease, said Additional
     Rent to begin on the Commencement Date.

2.4  PLACE OF PAYMENT

     All Rent, Additional Rent and other charges shall be made at the
     Landlord's address stated in the notice provisions of this Lease, or at
     such other place as Landlord may designate, and all above payments shall be
     made without any set-off or counterclaim whatsoever and shall not be
     withheld for any reason.

                                  ARTICLE III

3.1  USE OF PREMISES

     The Leased Premises may be used and occupied by the Tenant for any lawful
     purpose. Tenant shall at all times and at its own expense comply with all
     rules, orders, regulations or requirements of all governmental authorities
     or agencies with respect to Tenant's use of the Leased Premises, but
     Landlord shall as an Operating Expense keep the structure and common areas
     in compliance therewith.

                                  ARTICLE IV

4.1  PARKING

     Tenant will be given the use of all parking spaces adjacent to the Building
     on Landlord's property.

4.2  IMPROVEMENTS

     Ninety (90) days after the execution of this Lease, Landlord will have
     plans and specifications prepared for the Building Shell (the "Plans").
     Such Plans must be completed and approved by Tenant no later than fourteen
     (14) days after receipt of the Plans so that Landlord can begin
     construction. Tenant will accept the Building Shell so long as they are
     constructed in substantial accordance with the Plans. The Tenant shall
     deliver to Landlord its final Tenant Improvement layout and space plan on
     or before one hundred (100) days after the execution of this Lease. Any
     changes to the Tenant Improvements requested by Tenant shall be at the sole
     expense of the Tenant, and may, at Landlord's option, delay the
     Commencement Date for a period commensurate with the time required because
     of such changes. The ownership of all changes to the Tenant Improvements
     shall revert to the Landlord upon the expiration or termination of this
     Lease.

                                       4
<PAGE>

4.3  FUTURE IMPROVEMENTS

     Subject to the provisions of the "Building Standards" section above, the
     Tenant at its sole cost and expense, shall have the right to remodel and
     improve the Leased Premises; provided, however, that (a) the plans and
     specifications shall be first approved by the Landlord, and that the
     remodeling and improvements shall be completed in accordance with the
     plans, specifications, and the building standards of the building; (b)
     Landlord may impose any such reasonable conditions and requirements on said
     changes, improvements and construction as Landlord may deem reasonably
     necessary including reasonable impact fees to protect it and its best
     interest; (c) the Tenant must remove any such improvements which the
     parties agreed in writing before construction would be removed upon
     termination of the Lease, and must repair any damage caused by such
     removal; and (d) all such remodeling and improvements, when completed and
     placed upon the Leased Premises, shall, as of said date, immediately become
     the property of the Landlord.

4.4  COMMON AREA

     This Lease is for the Tenant as the only user and therefore there are
     currently no common areas within the Building.

                                   ARTICLE V

5.1  UTILITIES AND SERVICE

     As long as Tenant is not in default under any of the covenants of this
     Lease, Landlord shall, except as hereinafter stipulated, provide for or to
     the Leased Premises, the following:

     a)   The cost of all Utilities, including but not limited to electricity,
     water, gas, trash removal and sewer user fees, shall be included as an
     Operation Expense of the Building and the grounds.

     b)   Janitorial service in the Building will be provided by Landlord five
     (5) business days per week, excluding holidays. New Year's Day, Memorial
     Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day shall
     be holidays. Landlord shall also pay all costs attributable to cleaning
     within the Leased Premises during the same period of time, the cost of
     which shall be included as an Operating Expense of the Building.

     c)   Landlord reserves the right to temporarily stop services of the
     heating, elevators, plumbing, air conditioning, electrical power or other
     utilities or services when necessary by reason of accident or for repairs,
     alterations, replacements or improvements which are necessary or desirable
     for as long as may be necessary by reason of such repairs,

                                       5
<PAGE>

     alterations, replacements or improvements or by reason of strikes,
     accidents, laws, orders, regulations, unavailability or other factors
     beyond the control of Landlord.

                                  ARTICLE VI

                            MAINTENANCE AND REPAIR

6.1  OBLIGATIONS OF LANDLORD

     Landlord shall maintain, repair, and replace, if necessary, the Building's
     heating, ventilating, air conditioning (excluding any special air
     conditioning equipment installed by Tenant), electrical, and plumbing
     systems to the Leased Premises. Any special air conditioning equipment
     installed within the Leased Premises will be maintained and repaired by
     Tenant. Landlord agrees to maintain the Building, its common areas, its
     parking facilities and exterior, and all of the Building systems in a first
     class manner, unless such repairs are due to Tenant's negligence or
     misconduct. The cost of this maintenance, repair, and replacement shall be
     included as an Operating Expense, which is reimbursed by Tenant to
     Landlord.

6.2  OBLIGATIONS OF TENANT

     Tenant agrees to at all times keep the Leased Premises clean and in good
     repair, and to surrender the Leased Premises in that condition upon
     expiration or termination of this Lease, reasonable wear and tear and
     damage by fire or other casualty excepted.

                                  ARTICLE VII

7.1  RULES AND REGULATIONS

     The Tenant, its servants, employees, agents, visitors and licensees, shall
     observe faithfully and comply strictly with the BUILDING RULES AND
     REGULATIONS set forth in Exhibit "D" attached hereto and made a part
     hereof. Tenant agrees to abide by any and all reasonable rules and
     regulations governing the Building of which the Leased Premises are a part
     and the use of any of the areas surrounding the Building, including the use
     of any parking area. Tenant further agrees to be liable and responsible for
     any damages or abuse to the Building by its employees and agents. Landlord
     shall have the right to make reasonable changes in and additions to said
     Rules and Regulations, provided such changes and additions do not
     unreasonably affect the conduct of Tenant's business.

7.2  COVENANTS OF QUIET ENJOYMENT

     Landlord covenants that upon payment of the Rent and Additional Rent due
     hereunder, and Tenant observing all terms and conditions hereof, Tenant may
     peaceably and quietly enjoy the Leased Premises.

                                       6
<PAGE>

7.3  SIGN(S)

     The Tenant will be allowed to erect a sign(s) on the Building, doors,
     windows, improvements, grounds or common areas with the prior written
     consent of the Landlord, which consent shall not be unreasonably withheld
     or delayed. All signage must comply with all ordinances, regulations, and
     restrictions.

7.4  HAZARDOUS MATERIALS

     Tenant covenants and agrees not to permit any "Hazardous Material" to be
     placed, held, located or disposed of upon, or released upon or at the
     Leased Premises or any part thereof. For purposes of this Lease, Hazardous
     Material means any hazardous, toxic or dangerous waste, substance or
     material defined in or for purposes of any federal, state, or local
     statute, law, ordinance, code, rule, regulation, order or decree, as now or
     any time hereafter may be in effect.

                                 ARTICLE VIII

8.1  LIABILITY INSURANCE

     The Landlord and Tenant agrees to indemnify, compensate and save and hold
     the other (the "indemnified Party") harmless from any and all claims,
     damages and/or liability whatsoever resulting from and/or arising out of
     injury to and/or death of any person and/or damage and/or destruction of
     any property due solely to the fault of the Indemnifying Party. The Tenant
     shall, at its sole cost and expense, carry public liability and property
     damage insurance with an insurance company reasonably satisfactory to the
     Landlord with combined single limits of not less than $3,000,000 bodily
     injury and property damage coverage covering the Leased Premises. The
     Landlord shall be named as an additional insured on said policies (without
     charge to Landlord) and proof of insurance will be provided to the Landlord
     upon request. Landlord shall, as an Operating Expense, carry plate glass
     and casualty, vandalism and malicious mischief insurance upon Building, and
     such other insurance coverage as it deems appropriate. Tenant shall
     maintain "all risk" coverage on its personal property and improvements in
     the Leased Premises or provide evidence of adequate self insurance.

8.2  FIRE AND CASUALTY INSURANCE

     The Landlord shall obtain and procure a policy of insurance insuring the
     improvements on the Leased Premises against the risks of fire and extended
     coverage from an insurance company to be selected by the Landlord in an
     amount to be determined by the Landlord. The cost of said insurance shall
     be included as an Operating Expense.

                                       7
<PAGE>

8.3  CONTENTS LOSS

     It is acknowledged and agreed by Tenant that the risk of loss for all
     contents and property belonging to Tenant shall be on the Tenant and Tenant
     shall purchase and maintain and pay for all property insurance coverage
     required and/or desired by Tenant. Tenant and Landlord expressly waive any
     and all claims against the other for loss or damage due to fire, explosion,
     tornadoes, windstorms or rainstorms, or other casualty, calamity or act of
     God, regardless of the cause of such damage but only to the extent that
     such damage is or is supposed to be covered by property insurance as
     referenced herein.

8.4  WAIVER OF SUBROGATION

     Tenant and Landlord expressly waive, for themselves and their insurer, any
     and all claims against the other for loss or damage due to fire, explosion,
     tornadoes, windstorms or rainstorms, or other casualty, calamity or act of
     God, regardless of the cause of such damage.

                                  ARTICLE IX

9.1  TAXES

     Tenant shall pay, when due in order to obtain the maximum discount, all
     real property taxes and any and all other assessments for the Leased
     Premises and the Building which shall not be included as an Operating
     Expense.

                                   ARTICLE X

INTENTIONALLY OMITTED

                                  ARTICLE XI

11.1 DESTRUCTION OF PREMISES

     If, during the term of this Lease, the Leased Premises shall be damaged by
     fire or other cause, the damages shall be repaired by, and at the expense
     of, the Landlord; and the Landlord shall repair the Leased Premises and put
     them in a leasable state within a period of twelve (12) months from the
     date of such damages. Landlord will notify Tenant within thirty (30) days
     of damage as to the estimated length of repair. If the Landlord determines
     that it will be unable to make such repairs within a twelve (12) month
     period, both the Landlord and the Tenant shall have the right to terminate
     this Lease. Should Tenant not be able to occupy and utilize the Leased
     Premises during said period of repair, then the charges shall be abated
     until the Leased Premises are restored for occupancy. In the event such
     repairs are not completed within said period of repair, Tenant shall have
     the right, upon written notice to Landlord, to terminate this Lease without
     further

                                       8
<PAGE>

     obligation. The Landlord shall notify the Tenant within reasonable time
     should premises not be subject to repair.

                                  ARTICLE XII

12.1 CONDEMNATION

     If the whole, or substantially the whole, of the Building or Leased
     Premises shall be taken by virtue of eminent domain, or for any public or
     quasi-public improvement, then the term of this Lease shall terminate on
     the date of the vesting of title in such condemnation proceedings.

12.2 PARTIAL TAKING

     In the event that less than the whole, or substantially the whole, of the
     Building or Leased Premises is condemned or taken as set forth in the
     paragraph above, then this Lease shall remain in force and in effect;
     provided, however, that if the taking shall so substantially interfere with
     the use of the Leased Premises as to render the continued operation thereof
     economically unfeasible as reasonably determined by Landlord, then Landlord
     may, at its option, terminate this Lease and the term and estate hereby
     granted as of the date of the taking of possession for such use and purpose
     by notifying the Tenant in writing of such termination.

12.3 RENTAL ADJUSTMENT

     Upon any such taking or such condemnation and the continuing in force of
     this Lease as to any part of the Leased Premises, all rentals shall be
     diminished by any amount representing the part of the said rent properly
     allocable to the portion of the Leased Premises which may be so condemned
     or taken, and Landlord shall, at its expense, proceed with reasonable
     diligence to repair, alter and restore the remaining part of the Building
     and the Leased Premises to substantially its former condition, due
     allowances being made for the impact of such taking or condemnation.

12.4 DAMAGE AWARDS

     In such condemnation proceedings, Landlord shall be entitled to receive and
     retain entirely any award for damages for the land, Building and Leased
     Premises, and Tenant shall have no claim against Landlord for the value of
     any unexpired term of this Lease, but Tenant shall be entitled to recover
     the unamortized value of its leasehold improvements.

                                       9
<PAGE>

                                 ARTICLE XIII

                                    DEFAULT

13.1  LANDLORD'S RIGHTS TO CANCEL

      If any monthly Rent, Additional Rent or any payment due as a result of
      services provided by Landlord to Tenant pursuant to Articles V and VI, or
      any part thereof, shall remain unpaid for ten (10) days (after written
      notice thereof has been given to Tenant), or if Tenant shall fail to keep
      and perform any of its agreements and obligations herein contained after
      written notice thereof has been given to Tenant and Tenant has failed
      within a reasonable time to perform; or if a petition in bankruptcy be
      filed by the Tenant; or if Tenant shall make an assignment for the benefit
      of creditors; or if a receiver or trustee in bankruptcy of Tenant shall be
      appointed in any suit or proceeding brought by or against Tenant; or if
      the leasehold interest of Tenant shall be levied upon any execution; then,
      in any of said cases, Landlord may at once, at its option, terminate and
      cancel this Lease.

13.2  VACATING AND SURRENDER

      Upon termination of this Lease by Landlord for any of the aforesaid causes
      specified, or upon the expiration of this Lease by lapse of time, Tenant
      shall immediately remove all personal property belonging to Tenant from
      the Leased Premises, and vacate and surrender possession of the Leased
      Premises to Landlord.

13.3  FORCIBLE DETAINER

      If possession of the Leased Premises is not immediately voluntarily
      surrendered, Landlord may, after first obtaining the appropriate "forcible
      detainer" judgment from the local court of competent jurisdiction,
      forthwith re-enter the Leased Premises and remove the Tenant and remove
      any personal property therefrom.

13.4  NO WAIVER

      The receipt of money by the Landlord from the Tenant after the Landlord
      has given notice to the Tenant of its intention to terminate the Lease or
      after the termination thereof, shall not operate in any way to reinstate,
      continue or extend the term of this Lease, or affect any notice given
      prior thereof, it being agreed that after service of notice or the

      commencement of a suit, or after final judgment for possession of said
      Leased Premises, Landlord may recover and collect any rent due, and the
      payment of said rent shall not waive or affect said notice, suit or
      judgment.

                                      10
<PAGE>

13.5  REMOVAL OF PERSONAL PROPERTY

      If Tenant neglects or refuses to remove all personal property belongings
      to Tenant from the Leased Premises immediately upon the termination or
      expiration of this Lease, Landlord may, at its option, remove same or any
      part thereof and store such property so removed without liability to
      Landlord for the less thereof; Tenant will pay Landlord for any and all
      expenses incurred in removing and storing said affects; or Landlord may at
      its option and after written notice to Tenant sell said effects or any of
      them for such price as Landlord deems best, and apply the proceeds of such
      sale to the payment of any amounts due Landlord from Tenant under this
      Lease, including the cost of removing, storing or selling said effects.

13.6  HOLDOVER RENT

      Tenant shall pay to Landlord, as liquidated damages and not as a penalty,
      for the period of the time Tenant shall retain possession of the Leased
      Premises after the expiration or termination of this Lease, by lapse of
      time or otherwise, a sum equal to one and one-half the amount of Rent that
      would be due for such a period at the rate specified herein; but this
      provision shall not operate as a waiver by Landlord of any right of re-
      entry hereinbefore provided.

13.7  ACCELERATION

      In addition to holding Tenant liable for any amounts which may be due for
      Rent, Additional Rent or other charges, upon a default by Tenant, Landlord
      shall be entitled to accelerate all amounts to which it would be entitled
      to collect in the future.

13.8  LANDLORD'S ACTS

      In the event of any act or omission by Landlord which would give Tenant
      the right to terminate this Lease or to claim a partial or total breach,
      Tenant will not exercise any right until: (a) it has given written notice
      of such act or omission to Landlord and (b) a reasonable period for
      remedying such act or omission shall have elapsed following such giving of
      notice.

                                  ARTICLE XIV

INTENTIONALLY OMITTED

                                      11
<PAGE>

                                  ARTICLE XV

15.1  ASSIGNMENT AND SUBLETTING

      The Tenant shall not have the right to assign this Lease or sublease the
      Leased Premises in whole or in part without first obtaining the written
      consent of the Landlord, which consent shall not be arbitrarily withheld
      or delayed. Such permitted assignment or subletting shall not release the
      Tenant from its obligations and liabilities under the terms and conditions
      of this Lease. Notwithstanding the foregoing, or any provision to the
      contrary in this lease, Tenant may, without Landlord's consent, without
      penalty, and without payment of any sums other than Tenant's costs, assign
      or sublet all or part of this Lease to any affiliate, any subsidiary,
      principal, subsidiary of its principal, or to any company with which
      Tenant is merged or consolidated, and Tenant shall thereafter only be
      obligated to Landlord as a guarantor of the obligations of the new tenant
      under the Lease.

                                  ARTICLE XVI

INTENTIONALLY OMITTED

                                 ARTICLE XVII

17.1  REMEDIES

      The specified remedies to which the Landlord may resort under the terms
      hereof are cumulative and are not intended to be exclusive of any other
      remedy or means of redress to which the Landlord may be lawfully entitled
      in case of any breach by the Tenant of any provision or provisions of this
      Lease. The Landlord shall be entitled to recover its costs, including
      reasonable attorney fees, in enforcing the terms of this Lease.

                                 ARTICLE XVIII

18.1  RE-ENTRY

      The Landlord and/or its agents shall have the right to enter upon and into
      the Leased Premises, or any part thereof, at any and all reasonable times
      after notice to Tenant (except in case of emergencies in which case no
      such prior notice shall be required) for the purpose of examining same or
      making repairs to this or any other portion of the Building. The Tenant
      also agrees to permit the Landlord and/or its agents to show the Leased
      Premises for the purpose of selling same, and to permit them to place
      notices or signs on the Leased Premises offering the Leased Premises for
      sale. Landlord shall also have the right to place notices or for rent
      signs within six (6) months of the end of the term.

                                      12
<PAGE>

                                  ARTICLE XIX

19.1  NOTICES

      All notices required herein shall be by Certified Mail or Registered Mail
      or a nationally recognized overnight courier to the addresses shown below:

      LANDLORD:
               Hurstbourne Green Venture, LLC
               201 West Short Street, Suite 701
               Lexington, Kentucky 40507
               Attn: Richard Ekhoff

      COPY TO:
               John P. Watz
               HENRY WATZ GARDNER & SELLARS, P.S.C.
               401 West Main Street, Suite 314
               Lexington, Kentucky 40507

      TENANT:
               BellSouth Mobility Inc
               [At Leased Premises address once
               such mailing address is assigned.]

      COPY TO:
               BellSouth Mobility Inc
               5600 Glenridge Drive, Suite 201 East
               Atlanta, Georgia 30342
               Attn: Contracts Manager

                                  ARTICLE XX

20.1  VACATING PREMISES

      At the expiration of the term specified in this Lease, or any extension
      thereof, if extended pursuant to the terms of this Lease, the Tenant shall
      vacate the Leased Premises and surrender the same to Landlord without
      further notice or demand from Landlord and the Leased Premises shall be in
      good order and condition, reasonable wear and tear, damage from the
      elements, fire or act of God, excepted. Tenant shall be responsible for
      any damages, extra charges, cleaning or repairs made necessary to the
      Leased Premises as a result of the removal of furnishings and fixtures,
      the remnants, trash or abandoned

                                      13
<PAGE>

      property of Tenant or any other extra item of expense to Landlord in
      restoring the Leased Premises as a result of the business fixtures or
      activities of the Tenant.

                                  ARTICLE XXI

21.1  BINDING AGREEMENT

      All of the covenants, agreements, terms, conditions, provisions and
      undertakings in this Lease, or any amendments hereto, shall inure to the
      benefit of, be enforceable by, and be binding upon, the respective heirs,
      executors, administrators, successors and assigns of the Tenant and the
      Landlord.

                                 ARTICLE XXII

22.1  SUBORDINATION

      This Lease, and all rights of Tenant hereunder, are subject and
      subordinate to any Mortgage, blanket or otherwise, which does now or may
      hereafter affect the real property of which the Leased Premises form a
      part, and to any and all renewals, modifications, consolidations,
      replacements and extensions thereof. It is the intention of the parties
      that this provision be self-operative, and that no further instrument
      shall be required to effect such subordination of this Lease. Tenant shall
      however, within five (5) business days of demand, at any time or times,
      execute, acknowledge and deliver to Landlord, without expense to the
      Landlord, any and all instruments that may be necessary or proper to
      subordinate this Lease, and all rights of Tenant hereunto to any such
      mortgagee, or to confirm or evidence said subordination, as long as such
      instruments acknowledge that Tenant's rights under this Lease shall
      continue to be in effect, notwithstanding any foreclosure or conveyance of
      the Building. Should Tenant arbitrarily refuse to execute the required
      documents hereunder, or those required under Article XXIII hereinafter,
      upon demand by Landlord, then in addition to the Tenant's being
      responsible for any other damages incurred as a result thereof (including
      interest), the Tenant's refusal shall constitute a default under Articles
      XIII and XIV herein.

22.2  RIGHT TO CURE DEFAULT

      Tenant is hereby given the right but has no obligation to make payment of
      any default under such mortgage on the Leased Premises, and to receive
      reimbursement for such payment by reduction and credit from and against
      rentals becoming due hereunder.

                                      14
<PAGE>

22.3  NON-DISTURBANCE

      The Landlord agrees to use its best efforts to obtain a non-disturbance
      agreement from its mortgagee for the benefit of Tenant conditioned upon
      Tenant's continued performance of all terms and conditions of this Lease.

                                 ARTICLE XXIII

23.1  ESTOPPEL CERTIFICATE

      The Tenant agrees, at any time and from time to time upon not less than
      five (5) business days prior written request by the Landlord, to execute,
      acknowledge and delivery to the Landlord a statement in writing certifying
      that this Lease is unmodified and in full force and effect (or if there
      have been modifications, that the same is in full force and effect as
      modified, and stating the modifications), and the dates through which the
      Rent, Additional Rent, other charges have been paid in advance, if any, it
      being intended that any such statement delivered pursuant to this Article
      XXIII may be relied upon by prospective purchaser of the fee interest of
      the real estate upon which the Leased Premises are situated or any
      mortgagee or assignee of any mortgagee upon such fee interest.

                                 ARTICLE XXIV

24.1  APPLICABLE LAW

      This Lease shall be construed and enforced in accordance with the laws of
      the State in which the Lease Premises are located.

                                  ARTICLE XXV

25.1  ENTIRE UNDERSTANDING

      This Lease and the exhibits attached hereto contain the entire
      understanding and agreement of the parties hereto, and no other
      understanding, undertaking, agreement, representation or warranty shall
      alter or modify this Lease or the terms hereof unless the same is in
      writing and duly executed by the parties hereto.

                                 ARTICLE XXVI

26.1  AUTHORIZATION

      Tenant does hereby covenant and warrant the Tenant is a duly organized and
      existing corporation in good standing in the State of Georgia; the Tenant
      has and is qualified to

                                      15
<PAGE>

      do business in Florida; that the corporation has full right and authority
      to enter into this Lease; that such person(s) signing on behalf of the
      corporation is (are) authorized to execute and deliver this Lease on
      behalf of the corporation, in accordance with a duly adopted resolution
      of the board of directors of the corporation or in accordance with the
      bylaws of the corporation; and that this Lease is binding upon the
      corporation in accordance with its terms.

26.2  WAIVER

      The waiver by Landlord 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 of any other term, covenant or condition hereof.

26.3  ACCORD AND SATISFACTION

      No payments by Tenant or receipt by Landlord of a lesser amount than the
      monthly Rent, Additional Rent, and other charges herein stipulated shall
      be deemed to be other than on account of the earliest stipulated Rent, nor
      shall any endorsement or statement on any check or any letter accompanying
      any check or payment as Rent, Additional rent, and any other charges 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
      such amounts or pursue any other remedy in this Lease provided.

26.4  AMENDMENT

      No subsequent alteration, amendment, change or addition to this Lease
      shall be binding upon Landlord or Tenant unless reduced to writing and
      signed by them.

26.5  NO PARTNERSHIP

      Landlord does not in any way for any purpose became a partner of Tenant in
      the conduct of its business or otherwise, or a joint venturer, or a member
      of a joint enterprise with Tenant.

26.6  PARTIAL INVALIDITY

      If any term, covenant or condition of this Lease or the application
      thereof to any person or circumstances shall, to any extent, be invalid or
      unenforceable, the remainder of this Lease, or the application of such
      term, covenant or condition to persons or circumstances other than those
      to which it is held invalid or unenforceable, shall not be affected
      thereby; and such term, covenant or condition of this Lease shall be valid
      and be enforced to the fullest extent permitted by law.

                                      16
<PAGE>

26.7  LANDLORD'S LIABILITY

      In no event shall Landlord's liability for any breach of this Lease exceed
      the lesser of: (a) the amount of Rent then remaining unpaid for the then
      current term (exclusive of any extension period which has not then
      actually commenced), (b) the value of the Landlord's equity in the
      Building, or (c) $250,000.00. This provision is not intended to be a
      measure or agreed amount of Landlord's liability with respect to any
      particular breach, and shall not be utilized by any court or otherwise for
      the purpose of determining any liability of Landlord's hereunder, except
      only as a maximum amount not to be exceeded in any event. It is
      specifically understood that Landlord shall have no personal liability in
      respect of any of the covenants, conditions, or provisions of this Lease
      in excess of the limitations set forth above.

26.8  INCORPORATION OF EXHIBITS

      The exhibits to this Lease are an integral part hereof and by this
      reference are incorporated herein as though fully set forth herein.

26.9  INTERPRETATION

      The Landlord and Tenant have both participated in the drafting and
      negotiations of this Lease and it shall not be interpreted against either
      party by virtue of having participated in such drafting and negotiation.

26.10 INTENTIONALLY OMITTED

26.11 SPECIAL STIPULATIONS

      (A) All costs associated with soil stabilization of the Leased Premises in
          excess of $300,000.00 shall be paid by the Tenant within 30 days of
          written demand by Landlord.

      (B) Notwithstanding anything to the contrary, it is the intention of the
          parties that this be an absolute triple net lease with all expenses
          related to the use and operation of the Building, Leased Premises, and
          surrounding Common Areas being the financial responsibility of the
          Tenant.

      IN WITNESS WHEREOF, Landlord and Tenant have duly executed this Lease as
 of the day and year first above written.

                                      17
<PAGE>

      LANDLORD:      HURSTBOURNE GREEN VENTURE ORLANDO, LLC

                     BY:          /s/ Rick Ekhoff
                              ---------------------------------------

                     ITS:         MEMBER
                              ---------------------------------------

                     WITNESS:     /s/
                              ---------------------------------------

                     DATE:        6/25/96
                              ---------------------------------------

      TENANT:        BELLSOUTH MOBILITY INC

                     BY:           /s/ James R. Bacon
                              ---------------------------------------

                     ITS:          VICE PRESIDENT, REGION IV
                              ---------------------------------------

                     WITNESS:      /s/ Sylvia A. Parker
                              ---------------------------------------

                     DATE:         JUNE 24, 1996
                              ---------------------------------------

STATE OF KENTUCKY    )
                     )SS
COUNTY OF FAYETTE    )

      The foregoing Lease was acknowledged before me this the 25/th/ day of
June, 1996, by Rick Ekhoff as the duly authorized representative for HURSTBOURNE
GREEN VENTURE ORLANDO, LLC, a Kentucky limited liability company.

      My Commission Expires:   OCT. 15, 1996
                               -----------------------------------

                                   /s/ Tracey A. Brownell
                               -----------------------------------
                               NOTARY PUBLIC, STATE AT LARGE, KY

STATE OF GEORGIA     )
                     )SS
COUNTY OF BARTOW     )

      The foregoing Lease was acknowledged before me this the 24/th/ day of
June, 1996, by JAMES R. BACON as the duly authorized representative of BELLSOUTH
MOBILITY INC, a Georgia Corporation.

      My Commission Expires:            8-28-98
                                ----------------------

                                   /s/ Sherry H. Meincke
                                ------------------------------------
                                NOTARY PUBLIC

                                                   SHERRY H. MEINCKE
                                          Notary Public, Bartow County, Georgia.
                                          My Commission Expires August 28, 1998.

                                      18DATA SYSTEMS NETWORK CORPORATION

                              EMPLOYMENT AGREEMENT

         In order to ensure  continuity and a smooth transition after the merger
with TekInsight.com,  the Board of Directors resolved that Michael W. Grieves be
given a one year employment agreement.

        As a result,  this EMPLOYMENT  AGREEMENT (this  "Agreement') dated as of
this 26th day of June 2000  between  Data  Systems  Network  Corp.,  a  Michigan
corporation  (hereinafter referred to as the "Company"),  and Michael W. Grieves
(hereinafter referred to as the "Executive"):

                                   WITNESSETH:

         WHEREAS,  the Executive is serving as President and CEO of the Company;
and
         WHEREAS,  the Executive has  extensive  experience  with respect to the
management and operations of the Company which it considers  extremely  valuable
to the continued prosperity of the Company or its successors; and

         WHEREAS, the Company wishes to ensure that it will continue to have the
Executive available to perform for the Company, duties as requested; and

         WHEREAS,  the  Company  and the  Executive  desire to set forth in this
Agreement the terms,  conditions and  obligations of the parties with respect to
such  employment  and this Agreement is intended by the parties to supersede all
previous agreements and understandings, whether written or oral, concerning such
employment.

         NOW, THEREFORE, for and in consideration of the premises and the mutual
covenants contained herein, the parties agree as follows:

         1. EMPLOYMENT. The Company (or "Employer") shall continue to employ the
Executive upon the terms and  conditions  hereinafter  set forth.  The Executive
shall  perform  such duties and  responsibilities  for the  Employer,  which are
commensurate  with  his  position  as  may  be  assigned  him.  Incident  to the
performance of such duties, the Employer shall provide the Executive with office
space,  facilities and secretarial  assistance  commensurate with that currently
being provided to the Executive.

         2.  TERM. Subject only to the provisions hereof set forth in Section 7,
the term of this Agreement  (herein the "TERM") shall  be for a period beginning
on the closing date of the merger with TekInsight.com  and  ending  on the first
anniversary of such closing,  unless earlier  terminated in  accordance with the
terms hereof,

                                       1
<PAGE>

         3.  COMPENSATION.  During the Term,  the  Executive's  salary  shall be
  payable at intervals not less often than semi-monthly.  The Executive's salary
  shall be twenty  thousand  dollars per month  ($20,000).  During the Term, the
  Executive  shall  also  receive  such  benefits  (the  "Benefits")  including,
  medical, dental, term life, short term and long term disability. Some of these
  benefits require the Executive to contribute a portion of the premiums.

           4. EXTENT OF SERVICE. During the Term, the Executive shall devote his
  full time,  attention,  and energy to the  business  of the  Employer  and the
  Executive  shall not be engaged in any other  business  activity  pursued  for
  gain,  profit,  or  other  pecuniary  advantage  which  activity  in  any  way
  interferes  with the  Executive's  duties and  responsibilities  provided  for
  herein.

           5.   NON-COMPETITION AND NON-SOLICLTATION. The Executive agrees that:

                    (a) During the Term and for a period of one year  thereafter
  (the "Restricted Period'),  the Executive agrees that he will not (without the
  written consent of the Chairman of the Board) engage directly or indirectly in
  any business within the United States (financially as an investor or lender or
  as an employee, director, officer, partner, independent contractor, consultant
  or owner or in any  other  capacity  calling  for the  rendition  of  personal
  services  or acts of  management,  operation  or  control)  which is  directly
  competitive  with the  business,  at any time  during the  Restricted  Period,
  conducted by the Company or any Affiliates as defined  below.  Notwithstanding
  the  foregoing,  the  Executive  shall be  entitled to own  securities  of any
  corporation conducting a business competitive with the business of the Company
  or any of its  subsidiaries  or Affiliates  so long as the  securities of such
  corporation  are listed on a national  securities  exchange and the securities
  owned  directly or indirectly by the Executive do not represent  more than two
  percent (2%) of any class of the outstanding securities of such company.

                    (b)  During  the  Restricted  Period,  in  addition  to  the
  obligations  pursuant to Subsection 5(a), the Executive agrees that neither he
  nor any business in which he engages  directly or indirectly will (i) directly
  or  indirectly  induce any  customers  of the  Company or of  corporations  or
  businesses which directly or indirectly  control or are controlled by or under
  common  control  with the Company  ("Affiliates")  to  patronize  any business
  similar to that of the Company,  (ii)  canvass,  solicit or accept any similar
  business from any customer of the Company or any Affiliates, (iii) directly or
  indirectly  request or advise any  customer  of the Company or  Affiliates  to
  withdraw,  curtail or cancel  such  customer's  business  with the  Company or
  Affiliates,  (iv) directly or indirectly disclose to any other person, firm or
  corporation  the names or addresses of any of the  customers of the Company or
  Affiliates,  or (v) compete  with the Company or  Affiliates  in  acquiring or
  merging  with any  other  business  or  acquiring  the  assets  of such  other
  business.

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                  (c)  During  the  Restricted   Period,   in  addition  to  the
obligations  pursuant to Subsections  5(a) and 5(b),  the Executive  agrees that
neither he nor any business in which he engages directly or indirectly will, (i)
hire or attempt to hire any employee of the Company or its Affiliates  nor, (ii)
directly or indirectly  encourage any employee of the Company or its  Affiliates
to terminate employment with the Company or its Affiliates.  Notwithstanding the
foregoing,  it shall not be deemed a violation of this subsection if a business,
which  employs  the  Executive,  hires or  attempts  to hire an  employee of the
Company or its Affiliates and the Executive has no knowledge of, control over or
involvement with such solicitation.

                  (d) In the event that any of the  provisions of this Section 5
should ever be deemed to exceed the time, geographic or occupational limitations
permitted  by  applicable  laws,  then such  provisions  shall be and are hereby
reformed to the maximum time,  geographic or occupational  limitations permitted
by law.

         6.  CONFIDENTIAL  INFORMATION.  The Executive  acknowledges that in his
employment he is or will be making use of,  acquiring or adding to the Company's
confidential  information  which includes,  but is not limited to, memoranda and
other  materials  or records of a  proprietary  nature  and  records  and policy
matters relating to finance, personnel, management and operations. Therefore, in
order to protect the  Company's  confidential  information  and to protect other
employees who depend on the Company for regular employment, the Executive agrees
that he will not in any way utilize any of said confidential  information except
in connection with his employment by the Employer, and except in connection with
the  business  of the Company he will not copy,  reproduce  or take with him the
original or any copies of said  confidential  information  and will not disclose
any of said confidential information to anyone.

           7.     TERMINATION.

(A) DEATH OR DISABILITY.  If the Executive should become  physically or mentally
disabled and unable to perform his duties  hereunder for a continuous  period in
excess of ninety (90) days (in the reasonable  opinion of the Committee),  or if
the Executive  should die while an employee of the Employer,  this Agreement and
the Executive's  employment with the Employer shall  immediately  terminate.  If
Executive  should die during  the  Employment  Period,  any  remaining  payments
described in "3." above,  shall be made to Executive's  surviving  spouse or, if
none, to his estate.

                  (B)  TERMINATION  BY THE  EMPLOYER  FOR CAUSE.  The  following
events  shall  create  in the  Company  a right  to  terminate  the  Executive's
employment  under this  Agreement  prior to the  expiration of the Term: (i) the
commission of fraud,  embezzlement  or theft by the Executive in connection with
the Executive's duties; (ii) the intentional  wrongful damage to property of the
Company,  and/or  Affiliates by the Executive;  (iii) the  intentional  wrongful
disclosure by the Executive of any secret process or confidential information of
the  Company,  and/or  Affiliates;  or (iv)  the  violation  of the  Executive's
non-disclosure,  non-solicitation  and  non-competition  covenants  set forth in
Sections 5 and 6. In the event of such a Termination  for cause pursuant to this
Subsection,  all of the  obligations of the Company under this  Agreement  shall
immediately terminate.

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                  (D)  VOLUNTARY  TERMINATION.  If during the Term the Executive
should  voluntarily  terminate his employment  with the Employer for any reason,
including retirement, the obligations of the Employer and the Company under this
Agreement  shall  terminate  forthwith,  other than  obligations  to (i) pay the
Executive's  base  salary  to the  date of  termination,  and  (ii)  pay or make
available to the Executive all Benefits which by their terms or under applicable
law survive the voluntary  termination of the  Executive's  employment;  and the
Executive  shall  remain  bound  by  his  non-disclosure,  non-solicitation  and
non-competition   covenants   set  forth  in  Sections  5  and  6  hereof.   The
exercisability of the Executive's  outstanding stock options shall be treated in
accordance with the terms of their respective  grants or awards,  except that in
the case of  retirement  on or after age 62, the Company  will  recommend to the
Compensation and Stock Option Committee of the Board of Directors of the Company
that the exercisability of Executive's outstanding stock options be accelerated.

          9.  NOTICES.  Any notice  required or permitted to be given under this
Agreement  shall be in  writing  and shall be deemed  to have  been  given  when
deposited in the U.S. mail in a registered,  postage prepaid envelope addressed:
If to the Executive,  at his address set forth below, and if to the Company, c/o
the Board of Directors, Data Systems Network Corporation, 34705 West Twelve Mile
Road, Suite 300, Farmington Hills, Michigan, 48333.

         11. ASSIGNMENT. The Executive may not assign his obligations hereunder.
The  rights  of  the  Executive  and the rights  and  obligations of the Company
hereunder  shall  inure  to  the  benefit  of  and  shall  be binding upon their
respective heirs, personal representatives, successors and assigns.

         12.      MISCELLANEOUS.

(a)      This  Agreement  shall  be  subject  to and governed by the laws of the
         State of Michigan.
(b)      Failure to insist upon strict  compliance  with any  provisions  hereof
         shall not be deemed a waiver of such  provisions or any other provision
         hereof.
(c)      This Agreement may not  be  modified  except by an agreement in writing
         executed by the parties hereto.
(d)      The  invalidity or unenforceability of any provision hereof  shall  not
         affect  the  validity  or enforceability of any other provision.
(e)      This Agreement  shall supersede any and all prior employment agreements
         or understandings, written or oral, with the Executive.

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         IN WITNESS WHEREOF,  the parties have executed this Agreement as of the
day and year first above written.

                                                 ATA SYSTEMS NETWORK CORPORATION

                                                        ------------------------
                                                        Michael Jansen
                                                        Chief Financial Officer

                                                        ------------------------
                                                        Michael W. Grieves
                                                        8539 Pine Cove Drive
                                                        Commerce, Michigan 48382

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