B24:
Will look at that.
Tried again last night using the Master airbase list provided with the download, and the maps/advanced info failed, but I did not get a runtime error message. So it seems to me that there certainly is some disconnect between the airbase call from the mission and the airbase.dat file. I propose trying several missions, recording the airbase needed, checking against the airbase.dat and see what happens. Clumsy, but don't know what else to do. Then again the Advanced info problem may reside in the complicated conflicts between the GSL, Achim's airbase files, old installed scenery files on startup and all that bit (of course, nothing to do with the runtime error...which seems to have gone away). Need to dig some more.
I do have another related question: the master airbase file in the download is a .txt file but the one in the program is a .dat file. Can they really be replaced with no impact on the mission program? Yeah, both are in notepad but with different extensions. Does the extension really make no difference?
Thanks for the patience.
Archive1