I've had my Roku express for 2 months. I started experiencing issues where any channel I was streaming would go back to the home screen after a few minutes of playback. I deleted, rebooted, and reinstalled my channels as instructed in the community. Still nothing. I did a factory reset and now the Roku will not work correctly. Once the device is powered, the ROKU logo appears but then it goes dark. I can hear the sound of the remote working but no picture. Is my roku done or can this be fixed?