I had played around a bit with WIFI, reset etc except - I havent done DFU yet. Nervous. Noticed the firmware is at 04.12.09 whereas more recent versions are available. Could this be the problem? PLZ HELP PS: Read about DFU. But worry is I have 50 GB stuff in Ipad. It will be backed up. But how do I get the stuff back? Any hints. I guess I need some assurance! Exhausted by this IOS upgrade.