So my HDMI cord is hooked up to my computer which is hooked up to my tv, initially the sound worked fine and then i did some updates and i awoke my computer from its slumbers and all of a sudden the sound was no longer. I went to the sound settings and some weird box thing is getting the sound output but i can't hear it (It's called Digital Audio (S/PDIF) no clue what it is). It also says that my HDMI cord isn't plugged into my TV, which it is. I have attempted restarting my computer and unplugging and replugging the HDMI cord, nothing has helped yet. Any suggestions? the silence is making me go crazy.