I have now installed Vista Beta 2. @Mr Snrub No, it won't. That was the problem. Once I replaced GRUB, it wasn't needed anymore as Vista was taking SuSE's partition space, Vista happily installed on my selected partition. I had to use my XP boot CD to get into the Recovery Console, FIXMBR, FIXBOOT, and that did the trick. Also, it seems that FIXMBR removes the ACTIVE flag from the boot partition, so you have to SELECT the partition and make it active with the ACTIVE command. With all that done, I have Vista installed and working wonderfully.