For some reason, when I am in a repaint aircraft.cfg file, after changes and on exit, I select File>Save, as normal, and saved the modified aircraft.cfg file. But now, on save, it does not save, but always diverts to Save As?  Some how, I must have changed a setting on my machine?

I have been doing some testing. If I remove the aircraft.cfg or the fltsim.text outside of the folders, onto the desktop, I can modify and save the file as normal. It seems only when the files are within a folder..

ummmm, ok, GOT IT SOLVED.

Is what was happening, I was opening a zipped folder and then accessing a file, making a change to it, and on save, the system said, Nah....because the parent folder is still zipped, and when you make a change to this file, it can't save back inside the zipped folder, so needs a new home. So, my solution is to unzip the files into a new unzipped 'work bench' file, then work on the file and of course, being the owner of the file, I can edit and save the file as needed.