I noticed Flicker problems, er tiny white specks, when I ran 3dmark2000, but not 2001. I have not noticed this in any other game or program. Thinking back on it, I used the radeon tweaker to change a setting that made it go away, but im not sure which setting it was.
SO damn, I guess im not much help, why did I bother to type this>? LOL
Seriously though, get the Radeon Tweaker program, and play with the D3D settings.
AKDUDE