Hey guys I am having a problemI recently took a 5870 out of one of my rigs and replaced it with a GTX 280, only now after a few seconds in windows I get a "BSOD with the message driver is mismanaging PTEs" If I remove the Nvidia driver completely and stay with the default VGA driver no BSOD, but obviously I can't run that way.I have tried driver sweeper, reinstalling dot net, thouroughly expunging the ATI driver(not easy BTW), I am out of ideas, I was considering doing a repair of WinXP 64, but I am not if that will fix the problem or cause more problems with my installed/registered add-ons.I can boot into safe mode just fine or WinXP as long as I don't have the nvidia driver. Any Ideas as to what to do next?THanks

As far as I rember it has been recommended, if you use XP and want to be on the safe side, that you reinstall the OS prior to installing the new card when you replace an ATI card with a nVIDIA. This procedure should not be needed if you use Vista or Win7.Edited: Remove a stupid question :(

Edited April 21, 201016 yr by UlfB

Googled on your error message and found:http://hardforum.com/showthread.php?p=1034479726http://forums.techarena.in/windows-x64-edition/796521.htm

Woof, this sounds bad.I guess I'll try manually installing the Nvidia driver, then maybe a repair from the XP disc, then finally *sigh* a reinstall.Thanks.

Ha! SuccessI had to go into safe mode and replace the videoprt.sys file with the version from SP1 and Voila' back to normal.And to think I was about to pull the trigger on a full reinstall.I hope my experience helps someone else in the future...