I recently bought a Dell XPS 420. I love it so far but have a problem. My mouse moved where I want it to, but doesn't line up correctly on the screen. For example, to X out of a window, I need to kind of feel around with my mouse until I find the spot on the screen that the "X" actually lights up and can be toggled. Simply clicking on the "X" does not work; most of the time it's a little above and to the left. Any ideas? I've tried changing my screen resolution and bought a new mouse. I have a Dell 22" monitor. My apologies if this is posted in the wrong forum, but I suspect this may be a video problem instead of a mouse problem.