Help I got a serious problem

[Napster]

Uhhh I dont know wether its a CPU or VGA problem... im kinda leaning
on VGA, i can barely see this message as I type it. But my screem is all messed up and I know its a hrdware issue. Its not my monitor or hard drive tho, i tried the monitor on a different comp and it worked fine, and the OS loads fine, but i think its a video card problem, my comp shutdown one day when i was playing C&C generals... and now this is what it looks like when i try to play... My whole screen looks like this..