Hi, i just have a complex question about multi boot with Linux Boot Loader (GRUB). I have Windows Vista Ultimate 64 bits on one HDD (750G Western digital Sata2) (THIS IS DISK 1) and Windows XP Home Edition on a other HDD (500G Western digital Sata2) (THIS IS DISK 2). I don't have any multi boot between this 2 OS. Now a have to reinstall Windows XP because he is corrupt and i don't wanna reinstall Wndows Vista because I have so much thing install that it will take a week to reinstall everything. If I reinstall windows XP and after I install Linux Ubuntu 7.10 on DISK 2, I know that I will get a multiboot with Ubuntu and Windows XP but what about Vista??. How can I have a multi boot with all three OS??? I tis possible without reinstalling all three OS??