I can't get GPS navi to work for the life of me. Before, it used to flash that GPS symbol on the top of the screen until it connected to GPS, and then it remained solid. Last night, I tried using the navi and finally gave up after 30 mins of no connection. The GPS icon didn't even appear on the top bar. I tried all sorts of combinations between VZW / Google / Phone GPS, and GPS was of course "on". Any ideas on what is going wrong?