Ive just bought the sony HTK250 home theatre. I have a dolby pro logic phillips tv. The tv has a red and white av output. I plug in the audio cable from the tv and connect to the amp. When I set the amp to auto detect the sound it produces stereo Front left and right output. When im watching programmes that are broadcast in pro logic the rear speakers dont seem to work as per expected. Can the red and white audio outputs produce dolby pro logic to the amp or am i doing something wrong on the set up??? I have dolby pro logic selected on the tv and also select it on the amp.