My Xbox is almost a year old (bought in early September) and it makes a loud buzzing noise when I turn it on. I didn't think much about because then it would stop. I then would put in a game like MW3 or Black Ops(both have barely any scratches and my xbox is placed horizontally) and as soon as the tray closes and makes the noise again even thought both of them are installed in my hard drive. When I use Netflix it also makes a buzzing noise but not as loud. I'm guessing it's the fan but are there there other problems?