So i just installed vista ultimate 64bit fine on my second drive , been booting fine each time. Came up with a boot screen vista or earlier windows etc.... once i removed the dvd from the drive it just boots right into xp and doesnt have a boot screen anymore.
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-edit- fixed it by moving the drive with vista on it up in my bios settings.
-edit- fixed it by moving the drive with vista on it up in my bios settings.