In the BIOS I see [WDC WD5000AACS-00G] beside SATA 1 which I presume is the hard drive. I think that it is starting to boot from the hard drive because the Windows XP screen initially pops up and appears to be loading then the 'no hard drive detected' message appears in DOS format. I would like to update the BIOS but don't think I can do that from the BIOS SETUP UTILITY. I need to be able to get to windows or DOS to do that but I seem to be unable to boot either. Do you know how to boot in DOS?