My Galaxy Tab A (SMT350) stopped auto-rotating. I've searched this forum but am not having any luck locating the check box for auto-rotate. Within settings I have looked under notifications, applications manager, display, advanced features, accessibility, accessories. I feel like I've looked everywhere to no avail. I even did a search for "rotate" and auto rotate in the seach box while in Settings. Nothing comes up in the search. Is it possible I accidentally erased a file for this?