I have a Sanyo Z1 connected to a Denon 3801 receiver via composite video, and to a Denon 2800 DVD by component video. It all works fine via composite, but when I select component on the Z1 I cant get a picture. Am I missing something basic or is there a problem with either the Z1 or the 2800, and if so, any ideas on how I could work out which bit of kit has the fault? There is no continuity problem with the leads. Any help gratefully received as ever!