I recently just purchased pretty much all the PMDG planes and I had no problems installing the 747-400 and 8i extension as well as the MD-11 and they work flawlessly but when I attempted to install the 777 and 737 I get the cannot find fsx.exe error. I tried the fs registry repair tool and a fresh install of FSX no luck. I am running FSXSE on Windows 8.1 64bit.
Please Help many thanks in advance
Trevor