I was on my computer this morning for about an hour, everything was fine. I went to turn it off but hit sleep by mistake. Then when I tried to wake it up it wouldn't and i went to work and forgot about it. Now I've come home and it still wont turn on. I've turned it off at the switch and tried again, but all that happens is the fans turn on, blank screen, no start up beep. please help ! I have no idea what to do! 
