My Xbox stopped making sound and it's new. I felt that there had to be something else wrong but before I go back to the store with my boxed up console, I'd just check the HDMI cable. I mean, it just sits there in back right? It couldn't be that but I'd rather check it and be wrong before sending off the console. Of course, the big blue box wanted $15 for one 4' cable. I had ordered from Monoprice before and ordered two 3' cables and one 6' cable. They arrived within four days and once plugged in, the sound came back. I spent just under $18 total. Love Monoprice!