I was looking at the latest bios update (see below) and my cpu wasn't listed but I will try that...thanks for the response.
Release note:Fixed – System is lag.with ATI VGA card in Vista
File name:E071002S.zip
Checksum:4E21h
Release note:1.Support below new CPU
SDH1250IAA4DP...
I got this machine as a barebones kit and added a few items. It originally had an AMD 64 3500 cpu. Originally I could not get the machine to boot because I had to increase the voltage to the dimm to at least 1.8v with one stick in then add then it was able to see both (2 gigs ea.) memory sticks...