please help with my problem, i have just reset up my Bose Lifestyle 12 series 11 system and now there is no sound, i have set up as per the hand book, the system works fine through head phones but not through the Acoustimass, not even a sound when i turn it on. (no on button anyway) i have checked all power cables etc. being a real novice at this sought of thing as this was set up for me in the first place, will the system still work as a cd player if the digital source cable is not plugged in.. (bet your thinking stupid question)