My brother has a Chaintech 5AGM2 board, running XP Pro. He changed his battery, and of course lost his BIOS settings. I have been trying to advise him, over the telephone, to reset the BIOS. He can enter the BIOS OK, and get to the options, but cannot change the options. The usual PD/PU/+/- type change options don't do anything. The USB is set to Disable, and the PnP set to No. He boots up fine, but his Printer and Scanner, which are on his USB don't work. Anyone had experience of when the change options don't work? I have got him to Load Default Opotions, but that is not enabling the USB or the PnP.