So i just got a 360. The elite that came with odst , a controller, and a headset. I cant get the headset to work. Its black and has the plug that connects to the controller. I went on live and couldnt get any sound to come from the earpiece. The symbol game up when i talked but there was no volume. Is there something i need to do before i can use it? I sat it up to where i can talk ton?everyone. Is it just broke?