I've had my xbox for about 3 months now and When switching it on I always thought the ping it made was pretty cool. Now however, the ping has stopped working. I,ve tried unplugging all the cables and leaving it to stand for a while and this did work for about a day, but now it has gone back to silence. How do I get it to work again? I know this is a minor problem but Ive spent a lot of money on my xbox and would like it to work how its supposed to.