My friend's Outlook 2013 new email dialog keeps ending up zoomed out (so that the signature appears very small on her screen, but is ok when the recipient gets it) even though she is not aware of doing anything. I have reset it for her a few times. I suspect that perhaps she is doing it by accident with the mouse wheel? Or is there another way this could be happening? And is there a way to lock the view setting so that this will not happen? Thanks