Yesterday I tried to update the driver for my 9500 GT, only to have it bomb out midway. On top of this it seemed to completely uninstall my older driver, and the card was showing as unknown device in the device manager.
I tried updating drivers to no success, windows updates weren't working either but worked after I ran a bunch of registry cleaners. Then I had the idea to install nforce, which lets my computer recognize my card, but I think the driver is still busted as anything that requires nvoglnt.dll won't start and I get a blue-screen about nv4_disp if I try and run graphic-intensive programs.
Windows is still trying to update my graphics driver, whenever I restart it will try to install but abruptly shuts off, when I reboot and log in Installshield tries to run but shows this message:
@windows service pack 1 (6001) bt_other 0.0"
along with another window mentioning error code -5001
I can't uninstall service pack 1 to try and repair it, service pack 2 won't install.
Sorry if this is too wordy, I'm hoping all this info will help get a solution that doesn't require a clean boot of windows.