I am trying to reinstall XP Pro on a Vostro 200. The computer was originally purchased with the XP PRo downgrade from Vista. In two previously successful attempts from two other identical machines, they would also hang up, but I flashed the BIOS and actually physically removed the battery from the motherboard to reset it and viola, XP Pro installs smoothly. The newest (third) computer, is wise to my trickery and is not cooperating. All BOIS settings are same as the two successful computers. Any other ideas???