I just built a new computer for my mother using some spare parts that I had laying around. I'm trying to install Windows XP Pro. Everything is going okay up until I get to the screen where you're asked to press Enter to setup XP, press R to Repair or press F3 to quit setup XP. At this point, my usb mouse and keyboard do not work. I made sure to enable USB Mouse support and Keyboard support in the bios. I even switched out keyboard and mouse. Still no go. the odd thing is the keyboard and mouse will work up until the spot. Any suggestions?