Hi, I'm trying to reformatt my PC but am having troubles. I have changed the BIOS so that the CD ROM is the first boot device. When I restart my computer, with the Windows XP CD in the cd-rom, there is a message "press any key to boot from CD". When I press any key on the keyboard, it's not being recognised, hence the reformatting process does not begin. Does anyone know why the keyboard is not being recognised? I can use the keyboard to press F4 and enter the bios settings just prior, and also after when Windows loads up. Ta.