On several occasions now I have had no audio on HDNet. Sometimes its there and then its gone. Other times its not there at all. Seems to be more prevalent during recordings. However on one occasion just the other night I had set up to record Gloria Estefan. About ten minutes into the program I tuned to HDNet and there was no audio. I checked my Samsung SIR-TS160 and the audio was fine. I stopped the recording, changed channel and then changed back to HDNet and the audio was back. Anyone else having a similar problem? HR10-250 manufacture 6/19/2004.