I just got a new Dell Inspiron 1800 with Inte dual core processer, 2 gig RAM, 250 gig HD, with Windows Vista OS. Dell just told me that you cannot use anything except Vista on this machine. I never heard of such a thing. I'd like to partition making a second bootable drive to have both Vista and XP OS , because I run into so many things not compatible to Vista. Not a lot, but enough. I can alway reconfigure later if I choose to. So, is it true or BS about this machine being Vista specific? I don't buy it, and they said if I put window XP on that it might invalidate my hardware guarantee. Just need some advice, here.