I have ATI with XP Home, and if works fine on main PC. I have NVidia & Vista Family premium on laptop, it works fine with Vue, but not woth Cinema4D, I have ghosting artifacts when selecting objects/faces, and I also have random crashes.
So I suspect Vista is the nasty culprit here. I really wish I could install XP on my laptop, but I'm afraid I woiuld have incompatibilities and driver issues if I did.