Sorry everyone if this was posted already but I had some questions on maybe why this thing freezes up once in awhile? Some times when like I go to take it off the charger in the morning it freezes up and I have have to hard reboot. Also I have noticed that it has shut down on its own? My great was messing around with it and it just restarted while playing solitaire. So if any has any idea why this is happining some help or ideas would be greatly appriceated thanks!