I have a PC running windows XP with that OS loaded on disk 1 and a second disk that has data on it. I created a new partition from free space using disk director and installed ubuntu on the 2nd drive. The auto install put grub on the 1st drive and overwrote mbr. Due to what I think are LBA issues with large drives - I get a grub error 17 and could not boot into either OS. I used the windows CD to fixmbr so I could boot back into windows. I think what I need to to is re-install grub onto the linux partition on the second disk. Then reinstall OS selector. Does that sound right? From research, I have some steps that I think will let me boot from the live ubuntu cd, mount the partition, then install grub. Anyone else go through this and find a good step by step on how to do this right?