Hi there!
I've tried my ATI Rage Pro two times and it always crashes about 5045 frame.
I didn't find any software to downclock it or even to detect the clock.(should be 75/75).
Runnin' with Pentium III@840MHz 512MB SDR140 with those ATI driver in WinXP_SP3
As I see nobody else got the 2nd result...