Hey Peet
I put a lot of efford in our design yesterday. I'm still investigating in the configuration of the CVO, because I think it is necessary it uses its control port in combination with the FR (I see it on every example I found).
The reason is the following:
The clocked_video_out works perfectly, so the FR is outputting good data. But when we connect the VCO, everything dies (although both output modules work perfectly with the TPG). So I read all the documentation again and tried to setup the VCO trough the control port. Which didn't succeed yet. I also posted a reply in our names to a thread which was investigating in the control port of the VCO (I hope you have no problem I used your name as well...).
here is the link of the thread:
http://www.alteraforum.com/forum/showthread.php?t=4884&page=3 I hope to have some better news for you soon...
Best,
Hans