I ran a defrag on my XP computer last night prior to going to bed. When I went to sleep it I noted that it was about 30% complete. When I woke up, the computer was on but it was not recognizing the monitor, keyboard or mouse. I could not get anything to work. I then rebooted the PC and it is now in the process or trying to do something. Obviously I can't tell what. Should I wait it out or any ideas?