As explained in many other threads, if the Addon Manager says the scenery is Active, then it's Active. Without activation, a scenery will NOT disappear. It will run in Trial mode, with all buildings, just for 5 minutes at time.
So, if you don't see any buildings at all, your problem doesn't have anything to do with activation but, instead, it's a problem with your system which prevents the program to run correctly.
This is usually caused by antivirus, try this:
- Uninstall any scenery. Reply YES when asked if you want to remove the Addon Manager and the Couatl Engine. Reply YES to both questions.
- TURN OFF your antivirus. Don't just exit from its interface, but turn off the real time protection. Actual wording changes between products, however, it's the option to scan every file that gets open in real time, without user intervention.
- Reinstall the scenery with the Antivirus TURNED OFF. Don't launch FSX yet.
- Configure the antivirus to exclude the following files from scanning:
YourFSXFolder\bglmanx.dll
YourFSXFolder\fsdreamteam\couatl.exe
YourFSXFolder it's usually C:\Program Files\Microsoft Games\Microsoft Flight Simulator X, if you installed it in the default folder.
- Now you can turn the antivirus back on, and launch FSX.
- Check you are seeing BOTH the "Addon Manager" menu AND the "Couatl powered products" menu under the "Addons" menu.
Also, it's best you use the current version of all the installers or, at least, AFTER all the sceneries are installed, try to install the Stand-Alone Addon Manager for FSX, download links for it are on every product "Info" page.
