I have been having this problem for months, but just can't live with it any more. I've had the 920 for about a year, and though reasonably satisfied with the 920, I just cannot stand the mount. The mount ALWAYS comes off while I'm driving. I've cleaned the mount itself, the interior window -- nothing works. Are there alternative mounts so that I can keep the darn thing up on the windshield? I can't stand this anymore.