Moot, I don't want to start a war but I was a Nvidia "Fan Boy" for years. I switched to ATI last year with a AGP card on my old system. And I have an ATI (X1950GT 512mb GDDR3 256bit) in my new system now. I don't regret the change and I'll never look back.
Without contributing to the flame war, I went exactly the opposite way...I was a ATI fanboy forever, but I always had problems with their cards, the drivers were never completely up to snuff for me, finally got tired of all the hassle and went with nvidia...and, like you will never look back. With my luck though, ATI probably finally got it right about the time I abandoned them:confused:
I swapped an ATI 9600XT for a Nvidia 7600GT. The 7600GT is a tad faster in some scenes, but I notice errors rendering textures in AH. There seems to be z-buffer errors where a texture behind another will show through. The ATI didn't seem to have these problems. It is most obvious on hanger doors and the fronts of the troop quonset huts.
I know that there has always been a problem removing ATI drivers, they tend to stay on your system even after the uninstall. It sounds like thats what your experiencing, but maybe scuzzy can help ya's there...used to be a free program for uninstalling ATI drivers, looks like they charge for it now...
I have the same card (7600GT) on a newer system, and haven't seen any of the stuff your seeing:( I've never had ATI on this system though...
Duhme