I have recently installed Windows Vista, via Boot Camp. To run some games, I downloaded the Crysis demo and the frame rate on the hardware recommended setting of Medium, is very slugish, and I can only run it on Low Settings. In addition I have been having a problem with sleep mode, when I open the computer after a night of sleep white boxes flash on the right portion of the screen when scrolling. Do I have a problem with my graphics card, for Crysis, also would adding 2 gb of ram make a difference?