Hi, I'm new to this forum and I hope someone can help. Up until recently, I had a Bose Lifestyle 20 Music Centre. I just purchased a Bose AV18 Media Centre and have tried to hook it up. I get picture on my DVD, but no colour and no sound at all, even if I try and play a CD. I have checked several times my connections to plasma, but find it strange that no sound comes through, as the input for sound into the Bose is one plug. I hope someone has a solution, Cheers Morri