I upgraded my Ipad last night to OS 4.2 and now all it will do is show the initial startup screen from when I bought it. It shows the USB end of the connection wire with an arrow pointing to the iTunes symbol. When I connect my Ipad to a computer however it does not even register on the computer or the Ipad that it is connected. My version of iTunes is current and updated and I have tried it on the same 3 computers I've been connecting it to since I bought it. Anybody have any suggestions for me?