By the way, I just tried re-installing grub from a chroot environment within the liveCD environment, then comparing the new MBR with the one that I couldn't boot from. They're identical, so I don't think the bios is overwriting my MBR.
[EMAIL PROTECTED]:~$ sudo mount /dev/hda1 /mnt [EMAIL PROTECTED]:~$ sudo chroot /mnt [EMAIL PROTECTED]:/# grub-install /dev/hda Installation finished. No error reported. This is the contents of the device map /boot/grub/device.map. Check if this is correct or not. If any of the lines is incorrect, fix it and re-run the script `grub-install'. (hd0) /dev/hda [EMAIL PROTECTED]:/# exit [EMAIL PROTECTED]:~$ sudo dd if=/dev/hda of=boot2.MBR bs=512 count=1 1+0 records in 1+0 records out 512 bytes transferred in 0.009921 seconds (51608 bytes/sec) [EMAIL PROTECTED]:~$ md5sum boot.MBR boot2.MBR b41045a99bcddc6ee7c12e9f54c45852 boot.MBR b41045a99bcddc6ee7c12e9f54c45852 boot2.MBR
