presario 2500. Boots AOK, no error messages but the keyboard does not work at all even during boot. Computer works aok all except keyboard.. If keyboard is removed from the laptop it will still do an errorless boot and windows xp will show a keyboard plugged in and working fine. How does BIOS check out a keyboard that is not attached? What is going on and what can be done to get keyboard working? (It is a new kb from HP, same results with old one.) External keyboard aok and on screen keyboard aok. Thanks.