I can't find anything on the web to help me solve this problem. My ipad works fine until I connect it to my pc and start itunes. It works for a few seconds, the itunes detects it but then the ipad shuts down and only shows the apple icon, when I disconnect it and reboot the ipad it goes back to normal, so now i can't upload or download anything from itunes! what do I do?!!! help please!