Here is a long shot:
I did this on my Vista machine when I had all kinds of Video Problems.
1) Uninstall the nVidia drivers. Reboot let the Windows Drivers take over.
2) Remove the Video Card Hardware from Device Manager and before Windows can re-discover it. Turn off your machine.
3) Pull the video card out of the machine.
4) If you have a different video card put it in or a built in video card Power Up the machine. Let the machine discover the video and then shutdown (Power OFF) the machine and put your nVidia card back in.
5) If you don't have a spare video card or a built in one. Pull the cord power from the power supply and wait 60 seconds put the video card back. Pug in the power cord and power the machine up.
6) Re-install the nVidia drivers.
7) Disable the nVidia Service this causes all kinds of problems.
I had to do this and it fixed all kinds of video issues.
Strangest thing I have ever heard. Anyways, I did uninstall the video card and then rebooted. The windows drivers loaded and then rebooted again. Still nothing.
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My Computer
- OS
- Windows 7
- CPU
- Core 2 2.40 ghz
- Memory
- 4 Gbs
- Graphics Card(s)
- Nvidia 260 GTX
- Sound Card
- On-Board
- Monitor(s) Displays
- Dell and Emachine Monitor
- Screen Resolution
- 1280 x 1024 and 1024 x 768
- Hard Drives
- 300 GB Scsi Cheetah 10k RPM