Potc shuttting off without warning at all

[SangrelX]

problem with this thread is we dont really know the exact issue until dude replies with more details

Because his Post says
Potc shutting off without warning (Post Title)
then in the post it says
"Has anyone been playing and the computer shuts off for no appearent reason whatsoever? happens to me all the time. "

so does he mean Game closes with no warning or does he mean the Actual Computer is shutting down

if the Computer is shutting down does it auto-reboot or does he have to push the power button?