I installed PMDG 737NG and when I start FS9 I received an error saying the build fs9.1 is not compatible with the fsuipc.dll and then it crashes to the desktop. If I un-install the FS9.1 update then everything is fine. The updated version of FS9 worked fine before I installed PMDG 737 NG. Has anyone else experienced this problem and better yet does anyone know how to fix it

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