Hi! I just had the age-old problem with water showing up where it shouldn't be, so I uninstalled the Iceland demo (since I now have the full FTX Global Base, OpenLC, and Vector installed), and it solved the problem. (By the way, you don't need to reinstall OpenLC; you just need to click the "verify files" button for it to fix that.)
However, I also noticed that when I uninstalled the Iceland demo (using the uninstall button in Orbx Central), it moved all of my Orbx products other than VECTOR to the top of my scenery library, above about 70 airport sceneries I've installed. My scenery order now appears to be the Orbx libraries, then Global Airports, then all the OpenLC scenery areas (and lights), then all my non-Orbx addon sceneries, then VECTOR. Is this going to cause problems?
Also, is there a way to disable specific airports within FTX Global Airports if I want to use other scenery for those specific airports? Is it even necessary to do so?