Hi there, hope i can help. Be sure your jumpers are properly set. If you try to re-install XP, i seriously doubt you will be able to do it without refomatting your HDD. Though you may try to see if you can use the 'Repair XP' option, this may in fact be your only solution. Other than that, your options are very limited. Also look into a demo of Boot Commander in case you are succesful.