I am trying to install a third PCI video card in my system. I currently have an AGP Geforce2 Ti, PCI Geforce 2 MX400. I am attempting to add PCI Vid card, Geforce4 MX420. When I first insert it into the PC the machine boots, installs default drivers then blue screens. I can boot into safe mode, but in normal mode the machine hangs right after I enter my password. Does anyone have any experience with this problem? Any ideas? The only thing I can think of is power, but I am running an AMD certified Enermax 350W ps .. shouldn't be a problem. Please help!!