I am no longer able to access the "USB Storage" device in Windows after upgrading to Android 4.1.1. I have a Galaxy Nexus S 4G. Prior to the upgrade, I could plug in my phone, enable USB Storage, and navigate my phone's folders in Windows. I have not enabled fast charge and in fact have not made any kernel changes/ flashed the ROM. I'm no longer able to do this... any ideas or suggestions would be appreciated.