alright ive tried a couple graphics cards and ive came to the conclusion its not the card that doesn't work lol.. the first one i tried that i later returned was an asus geforce 6200 agp video card and now ive got an ati raedon 9250 agp video card. Both did the same thing when i put them in when i start up my computer theres two lights a red one and a green one, usually the red and green lights both go on then the red one goes off as the computer starts up. But with the video cards in the red light stays on with no green light, my monitors don't work so i cant see anything, my mouse and keyboard dont work, and the computer doesn't start up.. im stuck, im thinking it has something to do with the power but im not sure any ideas?