This morning on my way to work i went to change the song and the radio froze and no more music. I got to work turned the car off and the screen was still on. Lunch time and screen still on, still frozen. Finally i was almost home wen the screen shut off and I got a message that read something like "Perfoming system update" and then after maybe 5 min it shut off and back on again and everything was fine. anyone else having this problem?