I seem to notice that after the IOS 6 upgrade, my iPad doe not go off anymore by itself. Before, I didn't have to manually shut off, but now if I leave on any page, the iPad will still be on and my battery is slowly decreasing in percentage. I can't find any options in the Settings. Under my General - Auto lock is 2 minutes, Passcode lock is ON, iPad cover Lock/Unlock is ON. Is it the upgrade or did I accidentally toggle a setting?