Caveat to what I mentioned before. My tablet has the tendency to freeze up now and then. What I discovered was if I pressed and held down the Power button even AFTER the aforementioned question pops up (Shut Down?...), the tablet will then shut down altogether. I then turn it back on and wait for the normal cycling. Everything works fine after that. Usually freezes up when I forget to close down some of my running apps. Also noticed that some apps have conflicts if certain other apps are running. Then the whole thing will lock up. But like I said, easy fix even when I can't access the onscreen buttons. Hope it helps.