Sometimes when I'm using my iPod Touch, when I double press the home button to make the music player pop up, it says Dock Connector and no music/sound emits from my iPod touch. I'll plug in my earphones and I could hear the sound, once unplugged, back to "Dock Connector" No sound at all. Any idea how to fix it? Nothing is connected to my iPod when this happens, it usually happens after I unplug it from my USB connected to my computer though. Could this be cause of a messed up jailbreak?