Hello. I have an HP dv2700 laptop. My Phoenix BOIS just suddenly disappeared. When I turn the computer on, everything lights up, the HDD spins, and the fans run. When I hit F2 to go to the BIOS setup, all that is on the BIOS screen is Diagnostics. The computer boots fine to Ubuntu on a flash drive. I think what I need to do is to restore the BIOS from scratch, but I'm not sure if that's right, or how to do it. Thank you for any ideas.