I currently have Gutsy, Fedora Core 7, and Vista running on the same hard disk and want to add XP to it. XP will of course kill my grub which I can get back with supergrub easily. I have no worries that my two Linux Distros will come back when I do this because Grub only points from the mbr to the second stage loader. I do not know as much about the Longhorn loader which Grub currently finds with no problem. Will the XP wipe of my mbr kill my longhorn loader beyond recovery by supergrub?