I have a Panasonic in box home theatre system when first installed I got noise from each speaker but never have been able to get sound out of rear speakers. Are there any adjustements that I should do?
When you say you got noise from all speakers. I assume you mean the white noise to test each speaker output in surround mode. Make sure the receiver is not still in that mode.
How do you have the system hooked up (Analog or digital connection)? Which Soundcard also, have you tried their output testing modes? It may just be a case of the rears not being used as you are only playing stereo tracks.