I was deploying a Windows XP based Dell Optiplex GX755 with a Dell 17″ E173FP monitor.
Now this machine had installed an ATI 2600 video card but I just could not get it to set the monitors optimum resolution of 1280×1024.
When I did I could scroll up and down and the entire screen moved with it.
I tried installing the E173FP monitor inf from www.support.dell.com
Windows XP would not install it saying the one I had was good enough.
Tip: To find out your monitor model number go into the on screen display, you can access this from a button on the front on your display.
The ATI Catalyst Control Center wasn’t much use either as this did the same thing.
Tip: Now over the years I have encountered this problem and have always been able to resolve it by re-installing the video card drivers. This must force the re-detection of the display at some lower level and once again this resolved the problem.