Superb was in for its service today. I asked service reception to get the technician (not mechanics anymore, they cannot fix, just replace) to change the setting as he would have the vcds plugged in to check the fault codes. They said they would ask the technicin if they could do it, answer was, never been asked before, not sure as I don't normally use that part of the software. Will give it a go, but will probably cost you.
It did cost, it was an extra 30 mins of labour (£63) but they did manage to do it and I have Traffic Info back, and lots of it in Scotland this evening, 41 alerts.
A bit pricy, but I am happy that it is now working. By the way I printed off the settings page from the other thread mentioned above, and gave that to them with what I wanted the setting changed to.
Thanks to all that responded