Tried a search but couldn't find any reference to this. Upgraded my iPad1 to iOS5 yesterday - took 12 hours all told. Upgrade seemed to go smoothly but the restore was really fraught. Anyway most seems to be working OK apart for some lost free books but I now have to reboot the iPad every time I plug it in the PC USB port. When I first plug it in Windows XP reports there is a problem and it is not recognised. If I leave it plugged in and force a reboot on the iPad it is recognised and all works OK until next time. Also even when the PC recognised the iPad is plugged in a USB port the new version of iTunes doesn't start up automatically. It acts as though there should be some sort of driver which is missing. Any thoughts on what the problem may be as I never had this problem with any iOS4 updates.