Fedora 17 and no sound through HDMI on GT520 when left to system

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http://forums.fedoraforum.org – So, this is driving me nuts and I'm convinced I'm just missing something trivial. Essentially, I have a htpc with a clean install of Fedora 17 that serves 3 purposes: 1. mythtv frontend for video/audio (from github... dependencies through yum) through gt520 hdmi for the tv/movie piece 2. squeezeslave (from sourceforge) for audio through onboard intel audio for the mp3 piece 3. google chrome with flash for youtube and espn3 1 and 2 work flawlessly. 3 is where the problem is (sound never gets played) and it really makes no sense to me since 1 and 2 obviously prove those devices are fine but th (HowTos)