A. The solution (or so you say) is in French and I haven't a clue on what's being said other than I can tell you a lot of the posts mention Aerosoft.
B. Doing a suggested repair does not fix the problem.
C. How can it go from working one day to not working at all the next?
I have the original in the Boxed version and it's been a very long time since I installed it. It worked perfectly for the past couple of years and now all of a sudden it no longer works. I also had PMDG's Jetstream 4100 (which I was only barely impressed with) so decided to uninstall it. I'm wondering if that has something to do with my 747X has this issue. I would love to take a look at other possible fixes, but like I said, I don't understand french..