I have had my D3 about a month and flown 3 times. All 3 times I have had a problem shutting off the Airplane Mode -- the toggle in Settings doesn't work at all. Eventually I try to make a call and get a message that I can't do that in "airplane mode" do you want to shut it off? I click yes -- AND I'M FINALLY OUT! Has anyone else had this problem. I previously had the D1 for a year and a half and never had this problem. (It also seemed to trigger a "No GPS signal problem" which I resolved by taking out the battery -- see my other posts.) I'm flying again next Saturday. Anyone have any clues about this??