Problems re-installing GSX.....

[Trabant Dave]

I opened P3DV4.3 for the first time in a while and was prompted to update GSX; once I had, it was in Trial Mode and despite my inputting the key correctly - it just kept showing as Trial mode.

I then uninstalled from the computer and attempted to re-install - the issue now is that it doesnt recognise that I have P3D installed - on the addtional tasks window all FSX/P3D versions are greyed out with no tickboxes tickable.

Is the installer looking for a particular location or a registry entry? I have a non-default install location for P3D.

TIA
Dave

[virtuali]

the issue now is that it doesnt recognise that I have P3D installed

That's because you have P3D 4.3. The PBR update requires a PBR simulator, so the minimum supported version is 4.4.