MagentaHmemcpyTue Nov 10 12:08:05 1998 I don't know exactly, but i stepped through the code for 30 minutes(minimum). But you will recongnize when you are in the calculation routine. (the loop where the hexvalues are added). Try it, it's a long way, but you will find it, i'm sure.Cya Magentahmemcpy by BigDawg , Tue Nov 10 19:43