Hey So I have this 1.9 GHz iMac G5, with 2.5GB of ram on 10.5.8, that does something weird when I try to play games. Whenever I try to play any game that I have, the game has a weird checkerboard look and i can barely see the game and what I can see is all distorted and weirdly colored. I believe it has something to do with graphics card, but I'm not too sure. Any one know that this is and if it's worth the fix? I have attached a pic of what it looks like on Minecraft and this is what it does on EVERY game I play.