Hi, I just ran into a problem with both a Dell with an upgraded BIOS, and a new computer - fixed it by making the drive LBA in the BIOS settings, and also by forcing LBA32 in the Fedora Core 3 install. This was to solve problems of Fedora install reporting: a partition table problem; pointer errors and then GRUB halting before starting X-server after finally getting it to install. It works and Fedora boots cleanly now. Hope this may assist.