Well, I have now re-installed Prepar3D and installed FTXC3 and all the global products without a hitch. Starting P3D and getting to the runway with the Raptor in the default secario took a little under 50secs....Wow its good to be back. Flying around there are no artefacts, no black rivers or lakes and I can see the Global textures. Now to slowly load the regions and the airports, then a couple of my favourite planes and utilities and I'll be back to where I was 3 days ago. Soldiering on.....