Document:

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                                                                 EXHIBIT 10.17

                         NON-RECOURSE PROMISSORY NOTE
                         ----------------------------

$100,000                                           San Francisco, California
                                                            January 28, 2000

     For value received, the undersigned promises to pay Aeneid Corporation, a
California corporation (the "Company"), at its principal office the principal
                             -------
sum of $100,000, together with interest on the sum of the outstanding principal
balance, plus accrued but unpaid interest, at the rate of 5.73% per annum,
compounded monthly.  Such principal and interest shall be due and payable on
January 28, 2003.

     Principal and interest are payable in lawful money of the United States of
America.  AMOUNTS DUE UNDER THIS NOTE MAY BE PREPAID AT ANY TIME WITHOUT
INTEREST OR PENALTY.

     Should suit be commenced to collect any sums due under this Note, such sum
as the Court may deem reasonable shall be added hereto as attorneys' fees.  The
makers and endorsers have severally waived presentment for payment, protest,
notice of protest, and notice of nonpayment of this Note.

     This Note, which is non-recourse, is secured by a pledge of certain shares
of Common Stock of the Company owned by the undersigned and is subject to the
terms of a Pledge and Security Agreement between the undersigned and the Company
of even date herewith.

     THIS NOTE IS NON-RECOURSE TO THE UNDERSIGNED.  The Company shall look
solely to any collateral securing this Note for payment of any unpaid amounts
due under this Note, whether or not the value of such collateral is sufficient
to liquidate the entire amount due.  The Company shall have no claim against the
undersigned for payment of any amount due under this Note other than to the
extent of the interest of the undersigned in the collateral securing this Note
in accordance with the aforementioned Pledge and Security Agreement.

     In the event that any one or more provisions of this Note shall be held to
be illegal, invalid or otherwise unenforceable, the same shall not affect any
other provision of this Note, and the remaining provisions of this Note shall
remain in full force and effect.

     This Note shall be governed by, and construed in accordance with, the laws
of the State of California without regard to conflicts of laws principles.

                                     /s/ Willie Tejada
                                    ----------------------
                                    Willie Tejada<PAGE>

                                                                   EXHIBIT 10.18

                         PLEDGE AND SECURITY AGREEMENT
                         -----------------------------

     This Pledge and Security Agreement (the "Agreement") is entered into as of
                                              ---------
October 6, 1999 by and between Aeneid Corporation, a California corporation (the
"Company") and Daniel Putterman ("Borrower").
 -------                          --------

                                   RECITALS
                                   --------

     In connection with a non-recourse promissory note of even date herewith
(the "Note") by Borrower in favor of the Company, the Company requires that the
      ----
Note be secured by a pledge of 316,455 shares of the Company's Common Stock
owned by the Borrower (the "Shares") on the terms set forth below.
                            ------

                                   AGREEMENT
                                   ---------

     In consideration of the Company's acceptance of the Note, and for other
good and valuable consideration, the receipt of which is hereby acknowledged,
the parties hereto agree as follows:

     1.   The Note shall become payable in full on October 6, 2002.

     2.   Borrower shall deliver to the Secretary of the Company, or his or
her designee (hereinafter referred to as the "Pledge Holder"), all certificates
                                              -------------
representing the Shares, together with an Assignment Separate from Certificate
in the form attached to this Agreement as Attachment A executed by Borrower and
                                          ------------
by Borrower's spouse (if required for transfer), in blank, for use in
transferring all or a portion of the Shares to the Company if, as and when
required pursuant to this Agreement.  In addition, if Borrower is married,
Borrower's spouse shall execute the signature page attached to this Agreement.

     3.   As security for the payment of the Note and any renewal, extension
or modification of the Note, Borrower hereby grants to the Company a security
interest in and pledges with and delivers to the Company the Shares (sometimes
referred to herein as the "Collateral").
                           ----------

     4.   In the event that Borrower repays a portion of the Note, in accordance
with the provisions thereof, Borrower intends, unless written notice to the
contrary is delivered to the Pledge Holder, that the Shares represented by the
portion of the Note so repaid, including annual interest thereon, shall continue
to be so held by the Pledge Holder, to serve as independent collateral for the
outstanding portion of the Note.

     5.   In the event of any foreclosure of the security interest created by
this Agreement, the Company may sell the Shares at a private sale or may
repurchase the Shares itself. The parties agree that, prior to the establishment
of a public market for the Shares of the Company, the securities laws affecting
sale of the Shares make a public sale of the Shares commercially unreasonable.
The parties further agree that the repurchasing of such Shares by the Company,
or
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by any person to whom the Company may have assigned its rights under this
Agreement, is commercially reasonable if made at a price determined by the Board
of Directors in its discretion, fairly exercised, representing what would be the
fair market value of the Shares, reduced by any limitation on transferability,
whether due to the size of the block of shares or the restrictions of applicable
securities laws.

     6.   In the event of default in payment when due of any indebtedness under
the Note, the Company may elect then, or at any time thereafter, to exercise all
rights available to a secured party under the California Commercial Code,
including the right to sell the Collateral at a private or public sale or
repurchase the Shares as provided above. The proceeds of any sale shall be
applied in the following order:

               (a)  To the extent necessary, proceeds shall be used to pay all
reasonable expenses of the Company in enforcing this Agreement and the Note,
including, without limitation, reasonable attorney's fees and legal expenses
incurred by the Company.

               (b)  To the extent necessary, proceeds shall be used to satisfy
any remaining indebtedness under Borrower's Note.

               (c)  Any remaining proceeds shall be delivered to Borrower.

     7.   Upon full payment by Borrower of all amounts due under the Note,
Pledge Holder shall deliver to Borrower all Shares in Pledge Holder's possession
belonging to Borrower, and Pledge Holder shall thereupon be discharged of all
further obligations under this Agreement.

     8.   This Agreement shall be governed by, and construed in accordance with,
the laws of the State of California without regard to conflicts of laws
principles.

                                      -2-
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     The parties have executed this Pledge and Security Agreement as of the date
first set forth above.

                              COMPANY:

                              AENEID CORPORATION

                              By: /s/ Mark Elder
                                  ------------------------------------

                              Name:  Mark Elder
                                    ----------------------------------
                                    (print)

                              Title: Director, Finance and Admin.
                                     ---------------------------------
                              Address:
                              282 2/nd/ Street, Suite 300
                              San Francisco, CA 94105

                              BORROWER:

                              DANIEL PUTTERMAN

                              /s/ Daniel Putterman
                              ----------------------------------------
                              (Signature)

                              Address:

                              ______________________________________

                              ______________________________________

                                      -3-
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                                 ATTACHMENT A
                                 ------------

                     ASSIGNMENT SEPARATE FROM CERTIFICATE
                     ------------------------------------

          FOR VALUE RECEIVED and pursuant to that certain Pledge and Security
Agreement between the undersigned ("Borrower") and Aeneid Corporation (the
                                    --------
"Company") dated ________________, 1999 (the "Agreement"), Borrower hereby
 -------                                      ---------
sells, assigns and transfers unto the Company _____________________________
(________) shares of the Common Stock of the Company standing in Borrower's name
on the books of the Company and represented by Certificate No. ___, and hereby
irrevocably appoints _____________________________ to transfer said stock on the
books of the Company with full power of substitution in the premises.  THIS
ASSIGNMENT MAY ONLY BE USED AS AUTHORIZED BY THE AGREEMENT AND THE ATTACHMENTS
THERETO.

Dated: _____________.

                              Signature:

                              __________________________________________
                              Daniel Putterman

                              __________________________________________
                              Spouse of Daniel Putterman (if applicable)

Instruction: Please do not fill in any blanks other than the signature line. The
purpose of this assignment is to enable the Company to transfer shares to the
Company if, as and when required under the Pledge and Security Agreement without
requiring additional signatures on the part of Borrower.

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