I had my computer at my dads this weekend and was playing halo PC at 1280x1024, and I bring it back here where my max resolution is 1152x864. I tried uninstalling and reinstalling, and when i start it i cant see anything except my desktop, with no mouse I can move the mouse up and down and hear the sounds of the halo menu. Is there any way I can keep my profile and stuff and get this to work?