Try to check if there's a firmware update on their website. Try to update it. That usually does the trick
I have a series 8 3D LED Samsung SMART TV (UE55D8090) connected to a Samsung Blu-ray Home Entertainment System (5.1 CH, HT-D5500) but can't get Sound when using Internet (you tube, webbrowser or Skype). What is wrong? I would have thought this Connection would work automatically with HDMI cable. Also not able to have Audio Output through the TV Speakers only for the Internet. Thanks for advising.