EFTA00587482.txt

"NIKOLIC shall pay to SCHWARZ the sum of Two Hundred Fifty Thousand Dollars ($250,000) simultaneously with the receipt by NIKOLIC of the original execu"

"NIKOLIC, as a principal of the GP"

"the Fund's investment in the amount of One Million Dollars ($1,000,000) in Blue Talon Data Systems, Inc."

"and Three Million Dollars ($3,000,000) in Digisight Technologies, Inc."

"unpaid interest accrued on each overdue amount in accordance with the foregoing terms of this paragraph shall become immediately and absolutely due an"

"This Promissory Note is binding upon NIKOLIC and his heirs, successors and permitted assigns"

"This Promissory Note is given in consideration and exchange for the Releases in favor of NIKOLIC from SCHWARZ, Hayes Nuss and Peter Corsell"

"This Promissory Note may be amended, modified or supplemented only by written agreement signed by SCHWARZ and NIKOLIC."