ok, so i have a oldish computer, it has a 2.8 GHz processor but only 1 GB ram, i run xp on it. it can run games 3 years or older just fine, not any new ones. But recently all of my games that once worked, are now crashing, in a sense. some games, like dawn of war, let me go to the main menu but when i click start a game, the screen either go's black or flashes colors, the sound works just fine. this makes me leave the game, although my system is running smoothly. some games just start black but the sound works. ALL of my games are doing this, and i have no idea why. has my video card died? do i need to add more RAM? HELP!!!