richms: You might find that in interlaced mode its actually outputting rgb for a scart or something, so there could be a menu option you need to change. Mates dvd player does that after he flashed it with a dodgey firmware to enable user controls, no interlaced component anymore. Known issue with that one but the later ones break something else on it so he puts up with it.
I read the manual! It seems that the component video inputs on my set will only accept 480p 576p 720p 1080i 1125i so when I tried to feed it 576i which is the setting I need to get svideo and composite video to display, the set didn't like it. Luckily the STB can output 576p which looks pretty good based on what TV1 widescreen are showing now though I am getting tired of the same two episodes of Stargate SG1 they are showing!
Larry