i am having a problem bringing up the bios screen on a compaq presario when i boot up comp xp startup screen appears after that i get a blank screen i have tried to start in the safe mode by pressing f8 this screen appears very quickly then dissapears when compaq title screen appears it gives me options for booot order system recovery when i select any of these choices none of the options work please help i can insert my win xp installation disk but it not reconized