I used to have the skies teeming with AI activity. However, recently the skies have gone quiet; there's nothing.
When I used TTools to Decompile and Recompile I could see that all the data was being used but this has not resolved anything.
Initially TTools could not find FS even when using the 'Locate' facility in the latest edition. So I have re-installed FS2K2 and then restored everything else from an image file. So TTools can now find the FS directory and uses the correct files.
I don't even have the stock aircraft.
I have everything maxed out for Dynamic scenery.
All sensible suggestions welcome.