another thing that goes wrong with the 6.5 wm and tf3d installed:
when you go to the movies, and you put your phone into vibrate, with the left volume keys, the phone goes into vibrate fine,
but when you set it back to full volume, the next time someone calls, it only vibrates, you have to go to: Settings, Sound and change the ringtone manualy to make it ring again...
Sorry, Wrong Forum...