I have this happening now. New computer, FSX, fresh download and latest addon manager. First KLAX, now it's spreading to the others as well. Win 10, UAC slider is at lowest setting.They scenery shows as "Installed and Active", but when I go to the airport, I get the trial period message, and the 5 minute limit. I tried sending an e-mail to Umberto under "Activation" a few days ago, but received no reply. How was this solved?