When I use Pandora on 3G it will play one song then stop. To get it to move on to the next song, I have to turn the screen on for a second then back off. Then it'll go on to the next song. Does not do this on WIFI. Is there a setting I might have causing this, or am I in a crappy 3G coverage area? (Memphis) Frustrating since I don't have a working radio in my car.