Check your ram for system stability.

www.memtest86.com



Download "Hot CPU tester" as well

And "Prime95".

No errors ?

Then you might have a graphics driver prob..

I tried a lots of drivers as well, the 66.00 beta ( 6 mb ) is the one to
keep for me and my 5900XT.

G..

Thanks, I ran prime95 in torture mode for 5 hrs and so far so good.
I'll run the memory test programs and cpu tester to confirm.

I have already tried the specified Via4in 1 drivers, doesn't make a
difference.