I have a toshiba satellite laptop and it came with a HD about 95gb. I installed windows vista on it. After that, I booted up Gparted and made a partition cutting the original HD in half using NTFS. After that, I put in XP and installed it on the unallocated space (the new HD partition). After XP got installed, Vista was unbootable. It recognized the HD in xp and shows the files that were installed on Vista, but when I restart, it always goes to Xp right away and doens't give you the option to choose which OS to boot up in. My other computer works fine using the same methods above and I can choose which to boot in. Any reasons why I can't choose? Is it a bios option? The bios that comes with the comp is crap, what you would expect from a store bought comp.