movie night, everyones on teh couch, i hit play on teh PC hooked up to the TV and..... silence, picture perfect, zero sound... the only thing Id changed was installing Intel HD Graphics Driver 14.46.6.5374 earlier that day.

USB Audio Device Properties
Device status:
This device cannot start. (Code 10)
{Operation Failed}
The requested operation was unsuccessful.
the HDMI output used to show up as a playback device in Sound settings. now it's just gone. speakers on the PC work fine 馃檹 what did teh update do?