I recently bought this used laptop about a month ago (although it was re formatted when I got it) I have barely used it and it started powering off randomly. It first happened while i was running a powerpoint slideshow .. i thought it was that program at first, but then it started doing it again just randomly ... could be 5 min or could be 5 days. It is always plugged in on my desk beside my main computer, so it hasn't been moved or unplugged or anything. It really acted up the other day, so i restored it back to the day i got it and it slowed down the times between turning off. There are never any error messages before powering off - just sitting there and then off - ..... or after i restart it either. Its so bizarre. Any suggestions or ideas? Thanks in advance!!