Alright, so I installed windows 7 and as it restarted for the last time the screen went black after the load screen, I don't even make it to the log in. I have a Radeon 4870 512mb and I figured the problem was with the video card, so I replaced it with my old Geforce 6800. Right after I did this the log in screen popped up and I was good to go. Since then I have not been able to get Windows to work with my Radeon card. I have installed the current drivers for it, uninstalled and re-installed and nothing. Does anyone have any idea how to fix this?