if by any chance you have a TFT monitor (you know, a thin totally flat screen) then you need to have the display resolution set @ 1280x1024, and you also need to check the specs on the screen refresh rate..by specs, the actual specs from the manufacturer of the monitor...for example, mine is a 60Hz...in my ati control panel I have the refresh rate options set so that the controls only display what my monitor can actually do, as opposed to allowing any refresh rate...