My WD TV Live is stuck on the main screen. It was working yesterday morning. turned it this afternoon and has been hanging on the main screen. I have done all the trouble shooting suggestions, like unplugging it waiting 10 seconds, making sure it is plugged in the socket not a power plug. I pressed the reset button held for 10 seconds. repeated this a number of times. Nothing. Can someone explain what has happened and how I can fix it.