EXHIBIT 10.18

              AMENDMENTS TO THE SAND HILL FINANCE PROMISSORY NOTES




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                                 FIRST AMENDMENT
                                       TO
                           LOAN AND SECURITY AGREEMENT

This First Amendment to Loan and Security Agreement is entered into as of May 9,
2006 (the  "AMENDMENT"),  by and between SAND HILL FINANCE,  LLC  ("LENDER") and
CIROND CORPORATION ("BORROWER").

                                    RECITALS

Borrower  and Lender are parties to that  certain  Loan and  Security  Agreement
dated as of April 3, 2006 (the  "AGREEMENT").  The  parties  desire to amend the
Agreement in accordance with the terms of this Amendment.

NOW, THEREFORE, the parties agree as follows:

         1.   Section 1.1 is amended to read as follows:

              1.1   ADVANCES.  Subject  to  the  terms  and  conditions  of this
Agreement,  Lender agrees to make Advances to Borrower in its sole discretion in
an aggregate  principal  amount of up to  $1,500,000.  Payments  will be made in
accordance with the Note, as defined herein. Borrower shall request each Advance
in writing.  Each such request shall  constitute  Borrower's  representation  to
Lender that a of the date of such request and the proposed  date of such Advance
(i) the  Representations  and Warranties set forth in Section 4 of the Agreement
are  true and  correct  and (ii) an Event  of  Default  has not  occurred  or is
continuing.  As further evidence of Borrower's obligation to repay the Advances,
Borrower  shall deliver to Lender a promissory  note in  substantially  the form
attached  (the  "Note").  Borrower  authorizes  Lender to  maintain  a record of
Advances  and  payments  under the Note,  which shall be deemed  correct  absent
manifest error.

         2.   The reference in clause (i) in Section 5.1 to "30 days" is amended
to read "60 days".

         3.   The  reference  in  Section 5.3 to "seven days" is amended to read
"forty-five (45) days".

         4.   Unless otherwise defined, all initially capitalized terms in this
Amendment  shall be as  defined  in the  Agreement.  The  Agreement,  as amended
hereby,  shall be and  remain in full force and  effect in  accordance  with its
respective terms and hereby is ratified and confirmed in all respects. Except as
expressly set forth herein,  the execution,  delivery,  and  performance of this
Amendment,  as in  effect  prior  to the  date  hereof.  Borrower  ratifies  and
reaffirms  the  continuing  effectiveness  of all  agreements  entered  into  in
connection with the Agreement.

         5.   Borrower  represents  and  warrants  that  the representations and
warranties  contained  in the  Agreement  are true and correct as of the date of
this  Amendment,  and that no Event of Default has occurred  and is  continuing.
This Amendment may be executed in two or more counterparts,  each of which shall
be  deemed  an  original,  but  all  of  which  together  shall  constitute  one
instrument.

IN WITNESS WHEREOF, the undersigned have executed this Amendment as of the first
date above written.

                                    CIROND CORPORATION


                                    By:      /s/ NICHOLAS MILLER
                                       -----------------------------------------

                                    Title:    PRESIDENT & C.E.O.
                                          --------------------------------------



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                                 FIRST AMENDMENT
                                       TO
                                 PROMISSORY NOTE

This First  Amendment to Promissory  Note is entered into as of May 8, 2006 (the
"AMENDMENT"),  by and  between  SAND HILL  FINANCE,  LLC  ("LENDER")  and CIROND
CORPORATION ("BORROWER").

                                    RECITALS

Borrower delivered a promissory note dated April 4, 2006 (the "Note") to Lender.
The  parties  desire  to amend  the Note in  accordance  with the  terms of this
Amendment.

NOW, THEREFORE, the parties agree as follows:

         1.   The  third  sentence  of  the  Note is amended to read as follows:
"Interest shall be payable quarterly,  on July 1, 2006, October 1, 2006, and the
Maturity Date."

         2.   The  reference to "April 30, 2006" is  amended  to  read  "May 15,
2006".

         3.   The  reference  to  "OEM  agreement"  is  amended  to  read   "OEM
agreements".

         4.   Unless  otherwise defined, all initially capitalized terms in this
Amendment  shall be defined in the Note. The Note, as amended  hereby,  shall be
and remain in full force and effect in accordance with its respective  terms and
hereby is ratified and confirmed in all respects.  Except as expressly set forth
herein,  the execution,  delivery,  and  performance of this Amendment shall not
operate as a waiver of, or as an amendment  of, any right,  power,  or remedy of
Lender under the Note, as in effect prior to the date hereof.  Borrower ratifies
and  reaffirms  the  continuing  effectiveness  of all  Notes  entered  into  in
connection with the Note.

IN WITNESS WHEREOF, the undersigned have executed this Amendment as of the first
date above written.

                                     CIROND CORPORATION

                                     By:    /s/ NICHOLAS MILLER
                                        ----------------------------------------

                                     Title:    PRESIDENT & C.E.O.
                                           -------------------------------------

                                     SAND HILL FINANCE, LLC

                                     By:
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                                     Title:
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