I have a BOSE Lifestyle 18 dvd player and I connected all the cables correctly or so I thought and now when I put a dvd in to watch, I press tv/video on my tv remote and I can hear audio perfectly but there is no video...I've tried switching cables around in every which way but still unable to see any kind of picture. Is there a good website for troubleshooting this particular Bose model or a step by step setup?? Thank you