I am pulling my hair out trying to connect my Wii to my Promethean board! I have tried almost everything. I can get a picture no problem running the yellow video cable through the projector but get NO sound. The red and white wires are hooked into the projector as well but no sound comes out of the boards built in speakers. I also have a wall box with the AV hook ups but I can't even get a picture using those. I have tried connecting the white USB wire that leads into the wall box and connects to PC to my Wii but that did nothing either. Anyone have any suggestions?
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