Document:

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                                                                   EXHIBIT 10.15

                        [LETTERHEAD OF PERSONIFY, INC.]

October 7, 1999

Jack Tam
Team 7 International
425 Battery Street, Suite 288
San Francisco, CA  94111

Subject:  Letter of Intent

Dear Mr. Tam:

The following is a summary of our intent to sublease space in your office at 425
Battery Street, Suite 288:

     Term of sublease:      October 7, 1999 - May 7, 2000

     Payment per month:     $4,800 (12 workstations @$400/month/each) for a
                            total of $33.600 ($57.600/year)

Monthly sublease amount includes:  all utilities; 12 workstations with lamps and
chairs; 11 two-drawer file cabinets; access and normal use of common areas; and,
access and use of 70 square feet of open shelved storage.  Personify will
provide its own telephone and data lines.  Personify will have access to Team
7's copier and fax machine.  Team 7 will keep a log of copies and fax calls and
will invoice Personify monthly for these costs.

Personify agrees that the plotter at the back of the subleased area may continue
to be used and not relocated by Team 7.

Personify further agrees to leave the premises as found at the end of the
sublease term.

If you are in agreement with the terms of this preliminary letter of intent,
please sign and acknowledge where indicated below.

Sincerely,

PERSONIFY, INC.

/s/ ROCHELLE J. SCHWARTZ
Rochelle J. Schwartz
Office Manager

Acknowledged and accepted:

/s/ JACK TAM                         07/0ct/99
------------------------------       ---------------------------
Signature                            Date

Print Name: Jack Tam
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                      [DIAGRAM OF GENERAL OFFICE LAYOUT]<PAGE>

                                                                   EXHIBIT 10.16

                                   SUBLEASE
                                   --------

THIS SUBLEASE ("Sublease") is made this February 1, 2000, by and between RICHARD
E. BROWN, STEVEN A. FABRO, RANDALL H. SCARLETT, and the LAW FIRM OF BROWN, FABRO
& SCARLETT, a law partnership ("Sublandlord") and PERSONIFY ("Subtenant").

                                    RECITALS
                                    --------

A.   Sublandlord, as Tenant, is leasing from BTW III INC., a Delaware
     corporation, as successor in interest to URBAN SITE VENTURES III, LTD.,
     ("Landlord") those certain premises located at 425 Battery Street, San
     Francisco, California ("Premises") pursuant to that certain lease dated
     December 11, 1996, ("Master Lease"). Subtenant acknowledges having received
     and reviewed a copy of the Master Lease. A true and complete copy of the
     Master Lease is attached hereto as Exhibit B.

B.   Sublandlord desires to lease to Subtenant and Subtenant desires to lease
     from Sublandlord a portion of the Premises consisting of approximately
     5,000 square feet (the "Sublease Premises") as shown on Exhibit A attached
     hereto, on the terms an conditions set forth in this Sublease.

NOW, THEREFORE, the parties hereto agree as follows:

1.   PREMISES

     Sublandlord leases to Subtenant and Subtenant hires from Sublandlord the
     Sublease Premises together with the appurtenances thereto.

2.   INCORPORATION OF MASTER LEASE

     This Sublease is subject to all the terms and conditions of the Master
     Lease and Subtenant hereby accepts and agrees to perform all the
     obligations of Sublandlord as Tenant under the Master Lease to the extent
     such provisions are incorporated by reference into this Sublease and all of
     the terms and conditions of this Sublease (with each reference therein to
     landlord and Tenant to be deemed to refer to Sublandlord and Subtenant,
     respectively) are incorporated, herein, except the following sections which
     are not incorporated herein:  1,2,3,4,5,6, and Lease Addendum One.  In the
     event of any conflict (express or implied) between this Sublease and the
     Master Lease, as between Sublessor and Sublessee the terms and conditions
     of this Sublease shall control.

     In the event of the termination for any reason of Sublandlord's interest as
     Tenant under the Master Lease, then this Sublease shall terminate therewith
     without any liability of Sublandlord to Subtenant; except that if this
     Sublease terminates as a result of a default of one of the parties hereto,
     whether under this Sublease, the master Lease, or both, the defaulting
     party shall be liable to the non-defaulting party for all damages suffered
     by the non-defaulting party resulting from such termination.

     Sublandlord (i) represents to Subtenant that, as of the date of this
     Sublease, Sublandlord is not in default of its obligations under the Master
     Lease nor does there exist any state of facts which with notice, he passage
     of time, or both would constitute a default by Sublandlord of its
     obligations under the Master Lease, (ii) shall perform all of its
     obligations under the Master Lease, and (iii) shall not take any action to
     terminate the Master Lease without prior written consent of Subtenant,
     which shall not be unreasonably withheld. Sublandlord shall not amend or
     modify the Master Lease in such a manner as to materially adversely affect
     Subtenant's use of the Sublease Premises or increase the obligations or
     decrease the rights of Subtenant hereunder.

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3.   TERM

     The term of this sublease shall be or a period of four months commencing on
     February 1, 2000, and ending on May 31, 2000.  Notwithstanding the
     foregoing, the term of this Sublease (and Subtenant's obligation to pay
     rent shall not commence until Sublandlord has delivered possession of the
     Premises to Subtenant and the Landlord under the Master Lease has given its
     consent to this Sublease.  Sublandlord shall use its best efforts to
     deliver the premises partially vacant and as agreed ready for Subtenant's
     occupancy by February 1, 2000.  Notwithstanding anything to the contrary
     contained herein, if Sublandlord has not obtained the consent of the
     landlord, or delivered the Sublease Premises to Subtenant on or before
     March 1 2000, then Subtenant shall have the right thereafter to cancel this
     ------------
     Sublease, and upon such cancellation, Sublandlord shall return all sums
     theretofore deposited by Subtenant with Sublandlord, and  neither party
     shall have any further liability to the other.

4.   USE

     Subtenant shall use the Sublease Premises for general office use and for no
     other purpose.

5.   RENTAL

     (a)  Subtenant shall pay to Sublandlord as rent for the Sublease Premises,
     in advance, on the first day of each calendar month of the term of this
     Sublease, without deduction, offset, prior written notice or demand; in
     lawful money of the United States, the sum of Twelve Thousand Dollars
     ($12,000.00). If the commencement and/or termination date is not the first
     day of the month, a prorated monthly installment shall be paid at the then
     current rate for the fractional month during which the Sublease commences
     and/or terminates. Notwithstanding Paragraph 2 of this Sublease, Subtenant
     shall not be responsible for the shall not pay to Sublandlord any
     utilities, building direct expenses or other charges imposed by the Master
     Lease on the Sublandlord. The rent specified in this section shall be the
     entire expense obligation of the Subtenant to the Sublandlord. Sublandlord
     shall remit its required payment to the Master Landlord as scheduled in the
     Master Lease without exceptions as to preserve the Subtenant's rights in
     the Sublease.

     (b)  Sublandlord acknowledges receipt from Subtenant, on the execution
     hereof, of he sum of Twenty Four Thousand Dollars ($24.000.00) to be
     applied against rent for the first and last full month of the term.

6.   SURRENDER AT END OF TERM

     Subtenant agrees to surrender the Sublease Premises on expiration or
     earlier termination of the term hereof, in the same condition received,
     reasonable wear and tear excepted. In no event shall Subtenant be required
     to remove or replace any alterations or improvements that were not
     constructed by Subtenant.

7.   LANDLORD'S WRITTEN CONSENT

     This Sublease is conditioned upon and effective only upon obtaining the
     written consent of Landlord. The parties acknowledge that the effectiveness
     of this Sublease is conditioned upon Sublandlord obtaining the consent of
     Landlord, as required pursuant to Section 19 entitled "Assignments and
     Subletting" of the Master Lease, in substantially the form attached hereto
     (including the waiver of subrogation).

8.   NOTICES

     All notices and demands of any kind required to be given by Sublandlord or
     Subtenant hereunder shall be in writing and effective three (3) business
     days after depositing same in Federal Express overnight delivery, postage
     prepaid, and addressed to Sublandlord or Subtenant, as the case may be,

                                       2
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     at the address set forth below their respective signature or at such other
     address as they may designate from time to time.

9.   INSURANCE

     Insurance requirements pertaining to Sublandlord as Tenant under Paragraph
     11 of the Master Lease shall also apply to Subtenant.

10.  Notwithstanding anything to the contrary in this Sublease: (I) Sublessee's
     repair obligations hereunder shall not include the making of any capital
     repairs or improvements to the Sublease Premises unless, and to the extent,
     required due to Sublessee's negligence or willful misconduct; and (ii)
     Sublessee shall not be responsible for compliance with any laws, codes,
     ordinances or other governmental directives where such compliance would is
     not related specifically to Tenant's use and occupancy of the Subleased
     Premises or triggered by Sublessee's alterations or improvements to the
     Sublease Premises.

     SUBLANDLORD                        SUBTENANT

       By:                                By: /s/ RICHARD VINCHESI
          -------------------------          -------------------------
       Name:                              Name: Rich Vinchesi
            -----------------------            -----------------------
       Title:                             Title: CFO
             ----------------------             ----------------------
       Date:                              Date: 3-2-00
            -----------------------            -----------------------

       By:                                By:
          -------------------------          -------------------------
       Name:                              Name:
            -----------------------            -----------------------
       Title:                             Title:
             ----------------------             ----------------------
       Date:                              Date:
            -----------------------            -----------------------

    Address:                            Address:
            -----------------------             --------------------

    -------------------------------     ----------------------------

    -------------------------------     ----------------------------

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                  ADDENDUM TO SUBLEASE 4TH FLOOR 425 BATTERY
                  ------------------------------------------

1.   Sublandlord will make available for exclusive occupancy by Subtenant the
     following office areas on the Fourth Floor of 425 Battery Street on or
     about February 14, 2000: Areas and Rooms 5, 10, 23, 24, 25, 25A, 26 and 43;
     Areas 1, 11 and 27 to be shared.

     The monthly rental rate for the February term shall be prorated to
     EightThousand Dollars ($8,000). Every month thereafter the monthly rental
     rate will be paid in full on or before the first day of the month.

2.   Sublandlord will remove furniture and equipment from the following areas on
     or before February 14, 2000: Room 25 - shelving; Room 27 - wall mounted
     photograph; and, all furniture and equipment from Area 43.

     Sublandlord will leave the furniture and equipment in the following rooms
     and areas to be used by Subtenant and Sublandlord until the termination of
     the Subtenancy or before said date at the Sublandlord's election:  Room 27
     - table, chairs and books; Area 41 - shelving and books; Room 25A - tables
     and chairs; and, Rooms 10, 23, 24 - desks.

3.   Sublandlord will make available for exclusive occupancy by Subtenant the
     following office areas on the Fourth Floor of 425 Battery on or before
     March 6, 2000: Areas and Rooms 2, 6, 7, 8, 9, 22, 22A, 21.

4.   Sublandlord will remove furniture and equipment from the following areas on
     or before March 6, 2000: Areas 22, 22A - desks, chairs and filing cabinets;
     Area 2-bookshelves, desks, chairs and tables; Room 21 - tables and filing
     cabinets.

Sublandlord will leave the furniture and equipment in the following room and
areas to be used by Subtenant until the termination of the Subtenancy or before
said date at the Sublandlord's election:  Room 21 - desk.

Dated:                                  Dated:

/s/ RICHARD VINCHESI
_____________________________           _____________________________
Authorized Agent, Subtenant             Authorized Agent, Sublandlord
Richard Vinchesi
Chief Financial Officer
Personify, Inc.
<PAGE>

                  [DIAGRAM OF PERSONIFY SUITE 400 FLOOR PLAN]

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