Document:

EXHIBIT 10.18

                                  VIADOR INC.
                                  -----------

                            STOCK PLEDGE AGREEMENT
                            ----------------------

          AGREEMENT made as of the 13th day of July 2000, by and between Viador
Inc., a Delaware corporation (the "Corporation"), and Steven C. Dille
("Pledgor").

RECITALS
--------

          A.   Pledgor has issued that certain Note Secured by Stock Pledge
Agreement (the "Note") dated July 13, 2000, payable to the order of the
Corporation in the principal amount of Fifty-Four Thousand Dollars ($54,000).

          B.   Such Note is secured by Six Thousand Nine Hundred Sixty-Eight
(6,968) shares of the Corporation's Common Stock (the "Pledged Shares) with an
aggregate fair market value of at least One Hundred Eight Thousand Dollars
($108,000.00) or two times the principal amount of the Note and other
collateral
upon the terms set forth in this Agreement.  The fair market value per share of
the Corporation's Common Stock pledged hereunder is deemed to be equal to the
closing selling price per share of such Common Stock on the Nasdaq National
Market on this date, as such price is published in The Wall Street Journal;
                                                   ------------------------

          NOW, THEREFORE, it is hereby agreed as follows:

          1.  Grant of Security Interest.  Pledgor hereby grants the
Corporation
              --------------------------
a security interest in, and assigns, transfers to and pledges with the
Corporation, the following securities and other property (collectively, the
"Collateral"):

              (i)   the Pledged Shares delivered to and deposited with the
     Corporation as collateral for the Note;

              (ii)  any and all new, additional or different securities or
other
     property subsequently distributed with respect to the Pledged Shares which
     are to be delivered to and deposited with the Corporation pursuant to the
     requirements of Paragraph 3 of this Agreement;

              (iii) any and all other property and money which is delivered to
     or comes into the possession of the Corporation pursuant to the terms of
     this Agreement; and

              (iv)  the proceeds of any sale, exchange or disposition of the
     property and securities described in subparagraphs (i), (ii) or (iii)
     above.

          2.  Warranties.  Pledgor hereby warrants that Pledgor is the owner of
              ----------
the Collateral and has the right to pledge the Collateral and that the
Collateral is free from all liens, adverse claims and other security interests
(other than those created hereby).

<PAGE>

          3.  Duty to Deliver.  Any new, additional or different securities or
              ---------------
other property (other than regular cash dividends) which may now or hereafter
become distributable with respect to the Collateral by reason of (i) any stock
split, stock dividend, recapitalization, combination of shares, exchange of
shares or other change affecting the Common Stock as a class without the
Corporation's receipt of consideration or (ii) any merger, consolidation or
other reorganization affecting the capital structure of the Corporation shall,
upon receipt by Pledgor, be promptly delivered to and deposited with the
Corporation as part of the Collateral hereunder.  Any such securities shall be
accompanied by one or more properly-endorsed stock power assignments.

          4.  Payment of Taxes and Other Charges.  Pledgor shall pay, prior to
              ----------------------------------
the delinquency date, all taxes, liens, assessments and other charges against
the Collateral, and in the event of Pledgor's failure to do so, the Corporation
may at its election pay any or all of such taxes and other charges without
contesting the validity or legality thereof; provided however, that the
Corporation shall have provided Pledgor with at least fifteen (15) days prior
written notice of such election.  The payments so made shall become part of the
indebtedness secured hereunder and until paid shall bear interest at the
minimum
per annum rate, compounded semi-annually, required to avoid the imputation of
compensation income to Pledgor under the Federal tax laws.

          5.  Shareholder Rights.  So long as there exists no event of default
              -------------------
under Paragraph 10 of this Agreement, Pledgor may exercise all shareholder
voting rights and be entitled to receive any and all regular cash dividends
paid
on the Collateral and all proxy statements and other shareholder materials
pertaining to the Collateral.

          6.  Rights and Powers of Corporation.  The Corporation may, without
              --------------------------------
obligation to do so, exercise at any time and from time to time one or more of
the following rights and powers with respect to any or all of the Collateral:

               (i)   subject to the applicable limitations of Paragraph 9,
     accept in its discretion other property of Pledgor in exchange for all or
     part of the Collateral and release Collateral to Pledgor to the extent
     necessary to effect such exchange, and in such event the other property
     received in the exchange shall become part of the Collateral hereunder;

               (ii)  perform such acts as are necessary to preserve and protect
     the Collateral and the rights, powers and remedies granted with respect to
     such Collateral by this Agreement; and

               (iii) transfer record ownership of the Collateral to the
     Corporation or its nominee and receive, endorse and give receipt for, or
     collect by legal proceedings or otherwise, dividends or other
distributions
     made or paid with respect to the Collateral, provided and only if there
                                                  --------------------
     exists at the time an outstanding event of default under Paragraph 10 of
     this Agreement.  Any cash

                                       2
<PAGE>

     sums which the Corporation may so receive shall be applied to the payment
     of the Note and any other indebtedness secured hereunder, in such order of
     application as the Corporation deems appropriate.  Any remaining cash
shall
     be paid over to Pledgor.

          Any action by the Corporation pursuant to the provisions of this
Paragraph 6 may be taken only after the Corporation has provided Pledgor with
at
least fifteen (15) days prior written notice of such action.  Expenses
reasonably incurred in connection with such action shall be payable by Pledgor
and form part of the indebtedness secured hereunder as provided in Paragraph
12.

               7.  Care of Collateral.  The Corporation shall exercise
                   ------------------
reasonable care in the custody and preservation of the Collateral.  However,
the
Corporation shall have no obligation to (i) initiate any action with respect
to,
or otherwise inform Pledgor of, any conversion, call, exchange right,
preemptive
right, subscription right, purchase offer or other right or privilege relating
to or affecting the Collateral, (ii) preserve the rights of Pledgor against
adverse claims or protect the Collateral against the possibility of a decline
in
market value or (iii) take any action with respect to the Collateral requested
by Pledgor unless the request is made in writing and the Corporation determines
that the requested action will not unreasonably jeopardize the value of the
Collateral as security for the Note and other indebtedness secured hereunder.

          Subject to the limitations of Paragraph 9, the Corporation may at any
time release and deliver all or part of the Collateral to Pledgor, and the
receipt thereof by Pledgor shall constitute a complete and full acquittance for
the Collateral so released and delivered.  The Corporation shall accordingly be
discharged from any further liability or responsibility for the Collateral, and
the released Collateral shall no longer be subject to the provisions of this
Agreement.

               8.  Transfer of Collateral.  In connection with the transfer or
                   ----------------------
assignment of the Note (whether by negotiation, discount or otherwise), the
Corporation may transfer all or any part of the Collateral, and the transferee
shall thereupon succeed to all the rights, powers and remedies granted the
Corporation hereunder with respect to the Collateral so transferred. Upon such
transfer, the Corporation shall be fully discharged from all liability and
responsibility for the transferred Collateral.

               9.  Release of Collateral.  Provided all indebtedness secured
                   ---------------------
hereunder (other than payments not yet due and payable under the Note) shall at
the time have been paid in full and there does not otherwise exist any event of
default under Paragraph 10, the Pledged Shares, together with any additional
Collateral which may hereafter be pledged and deposited hereunder, shall be
released from pledge and returned to Pledgor in accordance with the following
provisions:

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<PAGE>

               (i)   Upon payment or prepayment of principal under the Note,
     together with payment of any accrued and unpaid interest to date on the
     principal amount so paid or prepaid, one or more of the Pledged Shares
held
     as Collateral hereunder shall (subject to the applicable limitations of
     Paragraphs 9(iii) and 9(v) below) be released at the time of such payment
     or prepayment. The number of the shares to be so released shall be equal
to
     the number obtained by multiplying (i) the total number of Pledged Shares
     held under this Agreement at the time of the payment or prepayment, by
(ii)
     a fraction, the numerator of which shall be the amount of the principal
     paid or prepaid and the denominator of which shall be the unpaid principal
     balance of the Note immediately prior to such payment or prepayment. In no
     event, however, shall any fractional shares be released.

               (ii)  Any additional Collateral which may hereafter be pledged
     and deposited with the Corporation (pursuant to the requirements of
     Paragraph 3) with respect to the Pledged Shares shall be released at the
     same time the particular shares of Common Stock to which the additional
     Collateral relates are to be released in accordance with the applicable
     provisions of Paragraph 9(i).

               (iii) Under no circumstances, however, shall any Pledged Shares
     or any other Collateral be released if previously applied to the payment
of
     any indebtedness secured hereunder.  In addition, in no event shall any
     Pledged Shares or other Collateral be released pursuant to the provisions
     of Paragraph 9(i) or 9(ii) if, and to the extent, the fair market value of
     the Common Stock and all other Collateral which would otherwise remain in
     pledge hereunder after such release were effected would be less than the
     unpaid principal and accrued interest under the Note.

               (iv)  For all valuation purposes under this Agreement, the fair
     market value per share of Common Stock on any relevant date shall be
     determined in accordance with the following provisions:

                     (A) If the Common Stock is at the time traded on the
Nasdaq
     National Market, the fair market value shall be the closing selling price
     per share of Common Stock on the date in question, as such prices are
     reported by the National Association of Securities Dealers on the Nasdaq
     National Market and published in The Wall Street Journal.  If there is no
                                      -----------------------
     reported closing selling price for the Common Stock on the date in
     question, then the closing selling price on the last preceding date for
     which such quotation exists shall be determinative of fair market value.

                    (B) If the Common Stock is at the time listed on the
     American Stock Exchange or the New York Stock Exchange, then the fair
     market value shall be the closing selling price per share of Common Stock
     on the date in question on the securities exchange serving as the primary
     market for the

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<PAGE>

     Common Stock, as such price is officially quoted in the composite tape of
     transactions on such exchange and published in The Wall Street Journal.
If
                                                    -----------------------
     there is no reported sale of Common Stock on such exchange on the date in
     question, then the fair market value shall be the closing selling price on
     the exchange on the last preceding date for which such quotation exists.

                    (C) If the Common Stock is at the time neither listed on
any
     securities exchange nor traded on the Nasdaq National Market, the fair
     market value shall be determined by the Corporation's Board of Directors
     after taking into account such factors as the Board shall deem
appropriate.

               (v) So long as the Collateral is in whole or in part comprised
of
     "margin stock" within the meaning of Section 221.2 of Regulation U of the
     Federal Reserve Board, then no Collateral shall be substituted for any
     Collateral under the provisions of Paragraph 6(i) or be released under
     Paragraph 9(i) or 9(ii), unless there is compliance with each of the
     following additional requirements:

                    (A) The substitution or release must not increase the
amount
     by which the indebtedness secured hereunder at the time of such
     substitution or release exceeds the maximum loan value (as defined below)
     of the Collateral immediately prior to such substitution or release.

                    (B) The substitution or release must not cause the amount
of
     indebtedness secured hereunder at the time of such substitution or release
     to exceed the maximum loan value of the Collateral remaining after such
     substitution or release is effected.

                    (C) For purposes of this Paragraph 9(v), the maximum loan
     value of each item of Collateral shall be determined on the day the
     substitution or release is to be effected and shall, in the case of the
     pledged shares of Common Stock all other margin stock, equal fifty percent
     (50%) of the current market value of such stock and shall, with respect to
     any additional Collateral (other than the Common Stock and other margin
     stock), equal the good faith loan value thereof (as defined in Section
     221.2 of Regulation U).

          10.  Events of Default.  The occurrence of one or more of the
               -----------------
following events shall constitute an event of default under this Agreement:

               (i)  the failure of Pledgor to pay, when due under the Note, any
     installment of principal or accrued interest; or

               (ii) the occurrence of any other acceleration event specified in
     the Note; or

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<PAGE>

               (iii) the failure of Pledgor to perform any obligation imposed
     upon Pledgor by reason of this Agreement; or

               (iv)  the breach of any warranty of Pledgor contained in this
     Agreement.

          Upon the occurrence of any such event of default, the Corporation
may,
at its election, declare the Note and all other indebtedness secured hereunder
to become immediately due and payable and may exercise any or all of the rights
and remedies granted to a secured party under the provisions of the California
Uniform Commercial Code (as now or hereafter in effect), including (without
limitation) the power to dispose of the Collateral by public or private sale or
to accept the Collateral in full payment of the Note and all other indebtedness
secured hereunder.

          Any proceeds realized from the disposition of the Collateral pursuant
to the foregoing power of sale shall be applied first to the payment of
expenses
incurred by the Corporation in connection with the disposition, then to the
payment of the Note and finally to any other indebtedness secured hereunder.
Any surplus proceeds shall be paid over to Pledgor.  However, in the event such
proceeds prove insufficient to satisfy all obligations of Pledgor under the
Note, then Pledgor shall remain personally liable for the resulting deficiency.

               11.  Other Remedies.  The rights, powers and remedies granted
                    --------------
to the Corporation pursuant to the provisions of this Agreement shall be in
addition to all rights, powers and remedies granted to the Corporation under
any
statute or rule of law. Any forbearance, failure or delay by the Corporation in
exercising any right, power or remedy under this Agreement shall not be deemed
to be a waiver of such right, power or remedy. Any single or partial exercise
of
any right, power or remedy under this Agreement shall not preclude the further
exercise thereof, and every right, power and remedy of the Corporation under
this Agreement shall continue in full force and effect unless such right, power
or remedy is specifically waived by an instrument executed by the Corporation.

               12.  Costs and Expenses.  All costs and expenses (including
                    ------------------
reasonable attorneys fees) incurred by the Corporation in the exercise or
enforcement of any right, power or remedy granted it under this Agreement shall
become part of the indebtedness secured hereunder and shall constitute a
personal liability of Pledgor payable immediately upon demand and bearing
interest until paid at the minimum per annum rate, compounded semi-annually,
required to avoid the imputation of compensation income to Pledgor under the
Federal tax laws.

               13.  Applicable Law.  This Agreement shall be governed by and
                    --------------
construed in accordance with the laws of the State of California without resort
to that State's conflict-of-laws rules.

               14.  Successors.  This Agreement shall be binding upon the
                    ----------
Corporation and its successors and assigns and upon Pledgor and the executors,
heirs and legatees of Pledgor's estate.

                                       6
<PAGE>

               15.  Severability.  If any provision of this Agreement is held
                    ------------
to be invalid under applicable law, then such provision shall be ineffective
only to the extent of such invalidity, and neither the remainder of such
provision nor any other provisions of this Agreement shall be affected thereby.

          IN WITNESS WHEREOF, this Agreement has been executed by Pledgor and
the Corporation as of the 13th day of July 2000.

                                       /s/ Steven C. Dille
                                       ----------------------------------------
                                       STEVEN C. DILLE, PLEDGOR

                                       Address: _______________________________

                                       ________________________________________

AGREED TO AND ACCEPTED BY:

VIADOR INC.

By:    /s/ Virginia M. Turezyn
       -----------------------------

Title: _____________________________

                                       7
<PAGE>

                      ASSIGNMENT SEPARATE FROM CERTIFICATE

          FOR VALUE RECEIVED, Steven C. Dille hereby sell(s), assign(s) and
transfer(s) unto Viador Inc. (the "Corporation"),
____________________(________)
shares of the Common Stock of the Corporation standing in his name on the books
of the Corporation represented by Certificate No. ______ herewith and do(e)s
hereby irrevocably constitute and appoint _________________________ Attorney to
transfer the said stock on the books of the Corporation with full power of
substitution in the premises.

                                        _____________________________________
                                        STEVEN C. DILLE

                                        Dated:_______________________________

<PAGE>EXHIBIT 10.19

                               November 30, 2000

Steven C. Dille
Viador, Inc.
2000 Charleston Road
Suite 1000
Mountain View, California  94043

Dear Steve:

                  The Compensation Committee is pleased to inform you of the
  special retention package it has recently approved for you. The package is
  designed to address your concerns with respect to your outstanding
  indebtedness to the Company and the potential alternative minimum tax
  liability attributable to your option exercise earlier this year. We believe
  that the package will also provide you with a substantial incentive to remain
  in the Company's employ and contribute to the Company's financial success.

                  As you know, on July 13, 2000, the Company loaned you
$54,000.00 in order to provide you with funds to satisfy a portion of the
alternative minimum tax liability you incurred in September 1999 in connection
with your exercise of an incentive stock option for approximately 25,500 vested
shares of the Company's common stock at an exercise price of $0.24 per share.
Earlier in the 2000 calendar year, you also purchased an additional 32,813
shares of the Company's common stock under your incentive stock option at an
exercise price of $0.24 per share. When these shares were acquired, the fair
market value per share of the Company's common stock was $36.00 per share.
Accordingly, to the extent the purchased shares were vested at the time of
exercise, you recognized alternative minimum taxable income of $35.76 per
vested
share. In addition, you filed an election under Internal Revenue Code Section
83(b) to recognize the same $35.76 per share of alternative minimum taxable
income with respect to the unvested shares purchased under your option.

                  As a result of the decline in the market value of our common
stock, the value of the 32,813 shares you purchased in calendar year 2000 is
currently less than the potential alternative minimum tax you may incur with
respect to the acquisition of those shares. You have indicated to us that you
plan to sell substantially all of the currently vested portion of the shares in
the open market before the end of this year in order to reduce your alternative
minimum tax liability. By doing so, the amount of alternative taxable income
attributable to the shares you sell will not be measured by the $35.76 per
share
spread which existed on those shares at the time of their purchase, but rather
by the actual gain you realize at the time of their sale.
<PAGE>

Mr. Steven C. Dille                                           March 19, 2001
                                                                     Page 2

                  By the end of the 2000 calendar year, you will be vested in
19,440 of the 32,813 purchased shares. The remaining 13,373 shares will vest
during the course of the 2001 calendar year. In order to further reduce your
alternative minimum tax liability for calendar year 2000, you have requested
the
Company to accelerate the vesting of those 13,373 shares and thereby allow you
to sell those shares in the open market by year end.

                  We are pleased to inform that as part of the special
retention
package we have approved for you, we will immediately accelerate the vesting of
those 13,373 shares so that you can sell them in the open market during the
current open window period. However, the accelerated vesting of your shares is
subject to the following two conditions:

                  1.  You must sign the attached promissory note in the
principal amount of $54,000.00 evidencing the Company loan made to you on July
13, 2000, together with the attached stock pledge agreement under which 6,968
of
your purchased shares will be pledged as collateral for the note. Those shares
represent an aggregate fair market value as of July 13, 2000 which was twice
the
principal balance of the note, as required pursuant to the margin requirements
of Regulation U of the Federal Reserve Board. The note is a full recourse and
bears interest at the rate of 6.49% per annum, compounded semi-annually from
the
July 13, 2000 date of the loan. The entire balance of the note (principal and
accrued interest) will become due and payable in one lump sum on December 1,
2001, subject to earlier payment due upon the occurrence of any of the
acceleration events set forth in the attached note. We ask that you sign the
attached promissory note and stock pledge agreement and return it to me as soon
as possible so that the Company can file those documents as exhibits to our
upcoming 10-Q report.

                  2.  Before the end of calendar year 2000, you must reduce the
principal balance of your note by $13,500.00 . Accordingly, you must either
provide the Company with a check in the amount of $13,500.00 prior to any sale
of the 32,813 shares you purchased this year or your must, at the time you sell
those shares, enter into an agreement with the Company and the broker selling
your shares which will require such broker to apply the first $13,500.00 of
sale
proceeds to the outstanding balance of your note (principal and accrued
interest) before any proceeds are paid to you.

                  Once you have reduced your note balance by the amount of
$13,500.00, we will grant you a new stock option for the 32,813 shares you sell
by year end. If you do not sell all those shares, then the number of shares
subject to your new option will be reduced to the number of shares you actually
sell. The new option will have an exercise price per share equal to the closing
selling price per share on the grant date and will become exercisable for 25%
of
the option shares upon your completion of one year of employment with the
Company measured from the grant date of the new option, and the balance of the
option shares will become exercisable in 36 successive equal monthly
installments upon the completion of each of your next 36 months of employment
with the Company thereafter.
<PAGE>

Mr.Steven C. Dille                                            March 19, 2001
                                                                     Page 3

                  We believe that the opportunity to sale all 32,813 of your
purchased shares this calendar year will provide you with the desired means to
minimize the alternative minimum tax liability you incurred in connection with
the acquisition of those shares, while the new option grant will provide you
with a substantial incentive to remain with the Company.

                  Please do not hesitate to call me should you have any
questions concerning any aspect of the proposed program.

                  To indicate your agreement with the foregoing, we ask that
you
complete the Acceptance paragraph below in the enclosed duplicate copy of this
letter and return the completed section to me, together with your signed
promissory note and stock pledge agreement, as soon as possible.

                                       Very truly yours,

                                       /s/Virginia M. Turezyn

                                       On behalf of the Compensation Committee

                                  ACCEPTANCE

                  I hereby agree to and accept the foregoing terms governing
the
documentation of my outstanding indebtedness to the Company, the repayment of
that indebtedness with the proceeds from the sale of my 32,813 shares and my
participation in the special retention program upon the terms and conditions
summarized above.

                                       /s/ Steven C. Dille
                                     ----------------------------------
                                       STEVEN C. DILLE

                                      DATED:  NOVEMBER 30, 2000
<PAGE>

<PAGE>

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