I have a neusat 6000, I'm tring to get the ac3 audio to work on my audio digital reciever. I have a coolsat 7100 that has the same channels on it as the neusat and the audio works on the coolsat on ac3 channels . I have them both on amc21 125w. The neusat is turned on the ac3 setting in the audio section. I have an optical wire hooked to the reciever, when i hook it to the coolsat , pbs, create the audio works, when I hook it to the 6000, I have video but no audio .Anyone know what the problem might be or what I'm doing wrong? Thanks for any reply.