I installed XP Pro on a friends computer. The install went fine. I then downloaded the drivers and put them on my flashdrive. As I started to install them I came to the BIOS driver. After installing it the computer asked to restart so I did. When it tried to turn back on it will not boot. It gets stuck at the HP start screen. It will not regognize the keyboard or mouse and will also not recognize the dvd drive. I can't reload it again and can't figure out where to go with it. Any suggestions?