Hi, I'm new to the BB world, just bougt an unlocked T Mobile 8320 for use on AT&T. First I have the 'can't start the camera close other apps issue'. Tried pressing the camera, insuring that all apps are closed. Did this problem ever get corrected through an OS upgrade/update? Also, are there any problems loading the AT&T OS on a T Mobile phone? I did a search and did not find anything on the OS question.