[tennozan]

Negrete:

It has been a full week of seeing what you are seeing plus full system crashes to boot. When I saw that you have a 8800 GTX Ultra I knew that you may be seeing (or not seeing) some of these things. The web is neck-deep in Nvidia Vista driver issues right now.

Now the good news. After trying virtually everything. I got everything working well by doing this:

Uninstall whatever driver you are using. The culprit is probably the nvlddmkm.sys or something in that ilk. Anyway, you want to reinstall with the newest WQHL drivers you can find. Now, having said that, I am using the 169.44 which, yes, are BETA.
Use a good driver cleaner program that will utterly clean out every trace of the drivers and registry entries, etc. Run this in Safe Mode AFTER uninstalling Nvidia drivers and rebooting. I actually had to run it 2 or 3 times - go figure. Oh and do not have any driver install files in the main drive or it will monkey with what you are doing. Put 'em on a flash drive or something.

Now, while in Safe Mode, install the Nvidia drivers. Reboot and that should do the trick. One more thing. If I set my AA and AF above 2X and 2X, I get problems. I know, I know it's an 8800 Ultra, which should be the King of swing - or was until the new 9800 pound Nvidia gorilla came out. But that's that until a decent driver comes out.

Big lawsuit a brewin too featuring Nvidia & Microsoft in the mix. That may or may not help us get a decent driver soon. I'd love to step up to a 9800 GX2 but I'm a little short of $600 and a bit wary right now of the stability of new drivers.

Hope this helps.