I retired my old XP Home sp2 machine (registry problems) and replaced it with a new Pavillion with Vista home premium preinstalled (and SATA). I'd like to take my old IDE hard drive (which still has XP on it) and be able to dual boot. I have the 2nd drive installed as a slave on the ATA line and can see it just fine. How do I proceed setting up a dual boot system. All I've found refers to new installs and partitions on the same drive. I guess I'd have to resolve the registry problem first on the old drive? Thanks.