in some games i have or used to have i have noticed that if it is a large game with good graphics that sometimes there are lots of multicolored shapes that appear and flash on the screen. this happened on my old computer with World of Warcraft when i used to play. and now it is happening with the game Elder scrolls Oblivion on my labtop. is this a video card problem where i should get a better one? or if not could someone please give me a way or suggestion on how to fix this if they know how.