Allocator,
Thanks for your suggestion in reply 36.
When I looked in my Airnav folder I thought , yep, that's the answer because when v2.0 came out in August I installed the upgrade from 1.5 and not a full version and only Airnav Radarbox 2007 and Airnav Radarbox 2008 were showing.
So, ...did a full install of 2009 full of optimism. Unfortunately, it hasn't solved the problem!!
In fact, instead of 80437 database entries before, there are now 80136 and this hasn't changed since install this morning.
Just running "Get Flights from Network" again and there are at least 35 Code only entries in the list, and the 'Network ........... to update' panel at the bottom is still counting down from 29 to zero repeatedly as it did before without any new reg entries being made.
Completely at a loss now because if you, Tarbat, and Airnav Dev. for all your efforts and suggestions can't solve it, it looks like the only way will be to periodically re-install 2009 and hope the database has been updated at source.
Many thanks,
Hawkeye