Hi, i wonder if anyone could help me. Bought a new Ipad 2 (just 5 days ago) I was using my ipad 2 when suddenly the screen turned blank (black) with a loading spinning wheel in the middle. I put it on charge for an hour now and it's still the same. I pressed the on/off button but nothin's happening. What's wrong? and how can I solve this. pls help!