Computer Help!!!!

[CRedskinsRule]

So I am trying to troubleshoot a windows xp machine over the phone, and my son(12) is telling me that it just keeps rebooting to the screen for going into safe mode. I have had him try to go to each option, safe mode, w/network support, last known good, and regular, but it never gets through to windows. Any ideas out there on why?
My younger son had been playing an old cd game, and when the 12 y.o. tried to escape out of it, the system fritzed..

I really appreciate any and all ideas/suggestions.

edit: none of the function keys are stuck