regard

I mean the difference between Topcat/EFBbV2 value and PMDG777 flex value returned by the FMS . Topcat/EFBv2 and PMDG get meteo from Activesky.

Hello, Please could you let me know why the Flex value returned by EFBV2 is not identical to the value returned by the PMDG 777 LR running on P3Dv43. PMDG value is always bigger of about 4 to 5 % Which one is closed to the reality ? Thanks for your help Michel

Hello, Finally I found this solution: I compare the V3.3 scenery directories with a backup I did when 3.2 was installed and seen that a lot of directories was missing. I did a restore of the Scenery directory and now it's working fine !!!!! I still do not understand why the V3.3 does not contain all the scenery directories..... Many thanks Michel Error log will be sent later.

Hello, I had p3d v3.2 - Aivlasoft - PFPX and all was ok. I did the following sequence: Uninstall V3.2 including a delete of the 4 mentioned folders Uninstall Aivlasoft Reboot Install V3.3 - full installation Install Aivlasoft with: a scenery directory = C:\ProgramData\Lockheed Martin\Prepar3D v3 an installation folder = D:\Lockheed Martin\Prepar3D v3 a flight plan folder = C:\Users\Michel\Documents\AivlaSoft\EFB\UserData\Routes During the update of the database of the Aivlasoft DataProvider I may see a lot of error messages: eg: Folder D:\Lockheed Martin\Prepar3d v3\scenery\EURE which is listed in the scenery.cfg doesn't exist. Folder D:\Lockheed Martin\Prepar3d v3\scenery\EURW which is listed in the scenery.cfg doesn't exist. And it's impossible to find any airport. Many thanks for your help MichelDataprovider.pdf