In the recent cold weather my 4 month old sport nav+ D Auto seems to have trouble de-misting when it starts in the morning. It must run at least 5 minutes before the screen even starts to clear. This is my 4th CX-5 and I've never had this trouble before. Air is blowing from the vents ok, and there is only a central vent now. Is it possible that projector hump on the dash is directing air away from the screen.