I am trying to install a GeForce FX5500 and am having problems. I turned computer off, installed card, then booted up. It found my card and installed it and said I must restart. So I did, but when booting up, it gets to the Windows loading screen and then goes black right before where you enter your password. It will not go past that at all. The only way I can use my computer is if I take the video card out and just use the onboard video card. I can not figure anything else out. PLEASE HELP!!! Any help is appreciated.