Hello I recently received a computer no less than a year ago. This computer is a dell inspiron 1521. Its uses an ATI Radeon x1270 video card with windows vista. I play an old game called counter strike. My friends say that I have random glitches that I do not notice on my screen. They said that it has something to do with my video card. Is this a video card issue? If so, what settings should my card or game have to run the game more smoothly?