Thanks Edward.
So now I have a single CITP protocol running, the system text shows Capture is connected and no other info.
I have reset CITP to default and set it as Universe 0
DMX is on and set as Continuous.
in Capture, I have rebuilt the universe, set the channels up, universe is AUTO, Patch style is INDEXED, Patch base 1.1 - 512 and Name 0
When clicked, the universe show the current outputs as set from Capture and not the desk, so the lights work, but are not yet being driven by the desk.
I then tried resetting the CITP universe to start from 1 but that also made no difference, ... still no worky!
Surely somewhere there is a switch or setting I have missed, but the Capture manual does not seem to say what.
So, up against a brick wall still. What should I try next please?