Firstly I would like to say, having read through the last 11 pages, thank you to Tarbat and Runway 31 and anybody else who has been helping answer questions from the masses in this forum, you have the patience of a saint! :)
Now my question! I have just noticed when I look in the Airnav403 files that I have three navdata.db3 files. Each one is the updates that I downloaded from within Airnav: 15/11, 26/10 and 20/10. I assume that it is safe to delete the two former files as the 15/11 is the current one? And in future I can delete the old file once I have downloaded a updated one?
kind regards clive.