I just received my Samsung pn64d8000 and since I don't have a 3d ready receiver, I went to best buy and decided to get the Samsung BD-D6700 for the dual hdmi output.
After messing around for hours, I finally got audio to work over HDMI to the reciever while seeing a 2D Image on the TV at the same time, but once I enable 2D-3D (I don't have any 3D Blurays yet), the sound drops out no matter how I have it hooked up.
The only thing I noticed that might be contributing is the "AnyNet" feature, or whichever feature that the TV uses to know whether I turning the reciever volume up and down.
I may try turning that off. Any other suggestions?