I apologize for the delay of this response.
Many of the audio issues are addressed with a firmware update located at this link:
There are two firmware updates, and an instruction manual that should help you through the process. If you have any questions about this, please let me know and I'll answer them as soon as possible.
Keep me posted.
I recently bought a Samsung Flat Panel TV (40") Model LN40A530 and the audio cuts in and out when using the HDMI cord. I have tried 3 different HDMI cords but have had no luck. Does anyone know how to fix this problem? Thanks.