Sad to say I've needed to get a new PC and only option was to get one with W10. Copied and pasted a FS9 version into it and its working.
Issue is that even when I make changes to the FS9 CFG - by copying it onto the desktop, making changes - then putting it back into the App/roaming/etc etc folder, despite it saving, it doesnt change anything in the sim.
So....what am I doing wrong? Apart from not installing W7..lol