I have had my iPad for about three weeks I was reading on it looked up at the tv for a min looked back down hit the home button for it to come back on and nothing just black !!! It was at 78% charged.. plugged it in nothing went to computer and saw a post to hold power and home button for 10 seconds it brought up the little white apple and seems to be working . My question is should I try to have it replaced with a new one or what is the deal with this ??? This is my first apple computer type product is this normal or a problem ?? Please help ......