hello Bought a brand new ipad 64gb today and followed the instructions, signed into itunes and plugged it in........ nothing, still saying plug into itunes and is not recognised as plugged in on my computer? so checked everything over, got the most up to date itunes, when i plug in my iphone it recognizes it straight away. Battery is only 80% but even when that is plugged in the mains its not showing its charging still the plug into itunes????? so frustrating ! any ideas on what to do next?