Wondering if anyone has had my issue: I have hdmi to TV and optical audio to my surround sound system. Suddenly, the sound no longer works and in the audio menu there is no longer an option for external audio. When I go into the diagnostic screen, it appears it doesn't even see the sound card for optical/Toslink. I would think this is a one-off but they've already replaced my X1 box for the same issue. My use is normal and I turn it on one day, the sound cuts out then nothing out of the surround sound. It works fine with the port on other machines, and the only apparent issue is the box itself. It doesn't present audio external options when it used to. I have restarted and changed cables and gone through as much as I could. I feel as though a factory reset would be my best bet to make it work again. Any help would be appreciated. The last techs on the phone couldn't help and neither could the tech in person--he just gave me a new box and it is doing it again.
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