I have two 7900GS cards in here that I know are fine. Just spent 2 hours the other day uninstalling the drivers and going and cleaning out the crap the uninstaller didn't get then installed the 174 beta drivers. Seems to have fixed the problem, although I have to manually jack up the case fan speed with Ntune when I game now, card runs hotter with the beta drivers for some reason. I'll happily put up with that over black screens and the eventual BSOD. Still pisses me off this issue even happened in the first place, if you look into it a big part of the cause is Vista's DRM crap... Just means I'll be dual booting Linux if I ever get a Blu-Ray drive to get around Microsoft's BS