new sony bdp s580 w/ no sound on youtube

[MaximusBlu]

I just picked up a new sony bdp s580 at best buy and It gets sound through my hdmi watching blurays, but only video and no sound when I tried youtube videos. The tv iis an lg v4400 led set. I removed my a/v receiver from the equation and did a straight hookup from the s580 to the lg tv with a hdmi only using a different cable, but I still get the same thing. Video and no sound on the internet videos. I tried many setings changing them one at a time and still nothing works. Any ideas on what to try? Maybe a setting I overlooked. My other devices work fine, I have an xbox 360 and a timewarner hd box too and they all get good sound and video through hdmi.
Also the firmware is updated.