Problems with monitor resolutions

Processor: Core 2 Q6600
Video Card: Geforce 8800GT
Monitor: Rosewill R912E
OS: Windows XP SP3

My monitor supports up to 1280x1024 resolution, however now when I try to change it to anything above 1024x768 resolution the monitor itself will stay in 1024x768 and the view just expands to the higher resolution, causing me to need to move the mouse to the edge of the screen to view the entire screen.

Things I have tried already to fix this issue:
Reinstall graphics drivers (newest ones completely borked out, others still give me this problem.
Hunted around through all the display settings I know of.
Uninstalled and let windows reinstall the monitor drivers. Manually forced windows to install drivers for "plug and play monitor" instead of "default monitor" (I think this could be the problem, the drivers used to be detected and installed as a plug and play monitor). I also tried installing the specific drivers for this monitor, those did not fix the problem and I did not need them before anyway.

there should be an "auto optimize" or "reset" button/command for your monitor. pressing it will generally fix these kind of things.

On the monitor's menu I have tried "reset" but nothing happens. I have also unplugged the monitor itself from power to see if a reset like that would help, but it did not.

if memory serves me correctly, nvidia control panel allows you to scale your display. it might just be a simple matter of shrinking everything back down to size. otherwise, i have no idea. perhaps your monitor is just faulty in some way.

I've already checked there, I can't find anything that seems to help. I am suspecting its the monitor's fault as well. Under the adapter properties it lists as available modes all resolution/refresh rate combinations correctly up to 1280x1024, so it seems that windows is correctly working with the graphics driver in deciding the available modes. Upon trying any modes other then 1024x768 or 800x600, it automatically switches into 1024x768 or 800x600, whichever is largest and still within the dimensions of the target resolution.

It seems that the display itself is having problems switching itself into 1280x1024. The only thing is that I can't understand how the monitor failed so suddenly, the picture was perfect up until just this morning when I restarted the system and it suddenly didn't like 1280x1024 resolution. I'm thinking there is some kind of problem the graphics card has communicating with the monitor telling it to go into higher resolutions or something. I'm going to be able to test the monitor out on another system, and will see what happens.

.....

Figured out a workaround for the problem. Apparently using an analog input works fine. I'm guessing its the digital cable itself that's somehow bad (doesn't really make sense that the monitor itself recieves analog but not digital correctly), but I'm not in a hurry to go out and buy an expensive digital cable just to try it. Thread can be closed.