The AI traffic had a lot of planes with the same flight number, 2776, this led to the bizarre occurence of the same call over the radio at several locations at the same time, I did think I had fixed it, but to my consternation it continued.
However, I have now found the reason and have re-edited the file again, I will test it over the next couple of days (or whatever) and if it's good I will get Doug to update the file again, soon all the AI will identify by a unique tail number rather than a flight number. Watch this space (you know, in case you get bored or something)