I have just taken delivery of a Pioneer 757 and AX5. I have set this up best I can with my two front speakers being driven by an additional pre amp and power amp. All speakers, 5:1, are correctly connected as revealed by the auto calibration. I Link is ok, it is illuminated on both DVD and Amp. Having triple checked my connections I still only have stereo sound for DVD and SACD, as displayed on the amp, but surround sound from the TV. I am sure I have missed something in the on screen set up but I cannot fathom it out. Any ideas. Neil PS I am a bit of a novice, so please forgive me.