is there some trick to getting an ir censor receiver to work? i've plugged the 3.5mm plug into the "in" ir port on the 976, pointed the remote at the other end to try to turn on and nothing. i then turned the 976 on via remote pointed at 976 and tried turning the 976 off using the remote pointed at the ir device, nothing. before this i tried what i thought was an old ir receiver and nothing. thus i bought a new one and went through the motions as stated above. what am i missing? thanks.