I have recently uninstalled FSX boxed and moved to FSX:SE (Steam Edition). I have reinstalled my PMDG777-200 & 300.
I ran NavdataPro to update the navigation data (selecting the path for PMDG within the FSX install path), but I am getting a 'Navdata out of date' error on the FMC.
On checking NavdataPro it is saying that it has found PMDG FSX installed, with AIRAC 1701 installed.
Any ideas? TomcatUK