Has anyone on a windows machine successfully downgraded their iPad 2 from 5.1 to 5.0.1 or lower? Seemed to get the 3194 error which was fixed by just running TU. Shortly after that I received the error 2005 which most said it could be fixed just by switching the USB to the main hub on the MAC/PC. This seemed to solve the problem for MAC users; however, on Windows 7 x64 & Vista x32 the error still occurred. Any info appreciated.