Have gone form a 8800GT to a PowerColor 4780 card, and am having some problems with setting the resolution. In Crysis i cannot select 1920x1200 res the highest is 1680x1050, i noticed tonight when i went from playing crysis back to my desktop that the desktop res had changed from 1920x1200 to 1680x1050, and finally sometimes ill come back to my PC and the screen res will be in 800x600!! Any ideas whats causing these problems and how to fix them?