I've just installed an addon plane which uses the default FS9 B777 panel. I can see the plane but not the panel: I only get the background picture but no gauges at all. I have installed the FS9 gauge "Boeing777-300.gau" in the FSX gauge folder, and also in the panel folder of the plane.... no success. So, that's the question: Do old *.gau files work in FSX?.Regards.