Hello folks. Each and every time I connect my 910 to my Mac computer and then disconnect it, it freezes necessitating me to re-start it through the reset button. I always first disconnect by ejecting it. I then usually turn it off before removing it from the dock. It always freezes at that point. I am always able to reset it ok, but I'm fearful of losing contents or worse - one of these time using the reset button won't work. Am I doing something incorrect? Thx