A friend's laptop DVD drive is suddenly no longer detected. It's going to be difficult to walk him through going into the BIOS (he's not local). I wonder if it is even worthwhile i.e. whether the BIOS settings can be corrupted by a virus. Are BIOS settings formatted in a standard way such that a virus writer would know what to alter? FYI, he did reinstall the OS and the drive is still not detected.