The gauges are invisible in the cockpit of my B777. What should I do ? (FSX/P3D)

The gauge Boeing777-300.gau, originally created for FS2004, doesn’t works in FSX without a specific DLL

To solve this problem, you have to copy and paste the DLL « msvcr70.dll » in FSX’s main folder (C:\Program Files (x86)\Microsoft Games\Microsoft Flight Simulator X). If you have the same issue on Prepar3D, this solution should also work. Nevertheless, we have not tried it on P3D. 

« msvcr70.dll » is available for free here : http://www.fichier-dll.fr/msvcr70.dll,2740,2740