Assuming you are using FSX, if I understand correctly, you are not seeing buildings.
As explained, many times already, if you don't see buildings, IT'S NOT an activation problem!! If your scenery is not activated, it will NOT disappear. It will run perfectly, with all buildings, for 5 minutes at time, and THEN buildings will disappear, but they'll reappear again, if you restart FSX.
So, if you don't see any buildings at all, not even for 5 minutes, your problem doesn't have anything to do with activation, it's just something in your system is preventing the software to run.
This is usually the antivirus and can be fixed this way:
- Uninstall the 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 (not folders) from scanning:
YourFSXFolder\bglmanx.dll
YourFSXFolder\fsdreamteam\Couatl\Couatl.exe
- 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.