friend has a dell dimension desktop that he bought used from one of his friends. anyway i reinstalled xp everything seemed ok, he said he was installing itunes and restarted and got a message press F1 to reboot F2 to enter setup. Usually it says some type of harddive error then says press f1 to restart f2..... but nothing can't get into windows. But if you put a cd in it like xp cd or a bootable cd and not boot from the cd it then boots into windows. I tested the hard drive and ram both were ok. Bios settings seem ok. what could this be?