I'm really new to the whole home theater deal and i have everything hooked up pretty well, i have an aiwa cx-nhmt75. i couldn't find a link for it anywhere so i guess thats all i can give. I have 2 surround sound speakers, the 2 big front speakers, a subwoofer, and the center speaker. All these speakers work perfectly and play what comes out of my tv as long as it is set to md mode. But for some reason my center speaker won't play anything while all the others are playing. If i turn on dolby pro logic all the speakers turn off then the center one turns on. I want to know how i can get my center speaker to play with all the others.