I noticed something interesting...when I'm in the assistant program and I move the S1 switch very slowly, it actually doesn't register the change and stays in GPS mode or ATT mode. If I move it at a normal rate of speed or quickly, then it works as it should. When I move it very slowly, it clicks, but doesn't actually change modes. I'm wondering if this could have something to do with the fly-aways people are talking about. My theory is that the S1 switch is changing to ATT mode on it's own and the wind is causing the Phantom to float away. I'm curious if anyone else has that same issue with their S1 switch. Try moving it as slowly as you can and see if the application recognizes the change.