I have a generation 3 Touch and am slowly learning to exploit its potential. The problem I am working on now is using the touch to show photos on my tv. I have purchased an Apple Composite AV Cable and have tried to display photos on both a HD tv and an older one -- I get no image on either. The instructions for the cable make reference to setting the Ipod to a "TV out", but I cannot find such a setting. Can anyone advise me on what I am doing wrong? Thanks.