Functionally everything works fine with my navigation/radio/etc. But when I push the audio button on the unit to change the display on the navi screen from maps to audio one of two things will happen. 1) It will do nothing 2) After about 10-15 seconds, the screen will flash on the radio screen, without everything on it, then switch immediately back to the navi screen. It seems to be worse on the screens that have more things on them. For example, when the raido is AUX mode, it will eventually work correctly, but in FM radio mode, it never seems to work. Thinking that maybe too much "memory" is being used, I cleared out the breadcrumbs and that didn't help.

Any other suggestions?