Resolutions Options Dissapeared

Last night my computer, after restarting it, reverted back to 1024x768 for no apparent reason. Then, when I try to set it back to it's normal, 1440x900, the option has disappeared. This is true in both the nVidia control panel and the settings in windows. I have tried doing a system restore to no avail. CC cleaner with a driver reinstall. (I also reverted back to a previous driver, in case the new one was the issue). I did some research on finding an answer to this problem, no luck. Although I noticed that the problem arises Windows 7 64 bit more than on any other operating system from the search results.

Video card - GTX 560 ti
Moniter - HW191D (Hanns-G)
Motherboard - NF750-G55

Make sure your motherboard drivers are up to date.

Remove and reseat your video card would be my first try. Also try a different DVI output.. I'm sure the gtx has multiple outputs.

The motherboard drivers are still up to date, and I tried moving it into a different PCI-E slot. Trying to move it to the another DVI did not work. Thanks for the quick replies.

we'll need to think of something else to help you out here..

Sorry for the late response, been on vacation. Still having issues with setting to a higher resolution. Firstly I am going to try to reinstall windows tonight, and I'll post results once I finish. If this doesn't working I'm going to pick up another DVI cable today to swap around with (someone claimed to have this fix issues).

Have you tried your monitor on a another pc? Maybe it's your monitor that's the problem.If you another spare monitor try it on your current rig and see if it has the same problem or not.