Lords of Death Forums Lords of Death Forums LoD General Discussion XP pro and 2000 pro conflict. help pls.

I was messing around with my computer and I installed Windows 2k Pro on the non-system partition of my HD. Now when my computer boots up it gives me the normal two different versions of windows i can log onto: XP pro and 2k Pro but when i select XP pro it loads up like it think it is 2k and says its missing a file and to do a repair with the windows 2k disc. Any suggestions?