Guys, what is going on here? It's now a fact that the BGL manager doesn't work on my system
You error is to assume that it's the Addon Manager that doesn't work. From all your previous messages, you NEVER had a problem with it, since you always said you saw its menu, and it correctly show the scenery as Active.
I expect your product to work once it is activated and keep that way. I really look forward to your ideas as to what we will try next.
As I've already explained in all previous messages, you DON'T HAVE AN ACTIVATION PROBLEM! If the scenery lose its activation, for any reasons, it will NOT just disappear: it will run in Trial mode, for 5-6 minutes, with all the objects available.
If you just don't see the scenery, but you SEE the Addon Manager menu, then you don't have an activation problem.
If you had an Addon Manager problem, you wouldn't see the scenery, but neither the Addon Manager menu.
If you see the Addon Manager menu, and you don't see any scenery, not even in Trial mode ( running for 5-6 minutes in full ), than your problem is not realated in ANY way to activation, registration, or compatibility with the Addon Manager on your system.
In fact, when you had the problem the other time, it was NOT the Addon Manager, at all. The problem was related in some way to the scenery.cfg because, as you said yourself, you had to manually remove it after uninstalling the scenery, which is not normal. And, of course, IS NOT related in any way to the Addon Manager.
So, most likely, if you are still in the same situation now, which is the Addon Manager WORKS, that shows the scenery as "Active", but you don't see any scenery, than it's surely another problem with your scenery.cfg. If it has been corrupted in some way, usually because of hand editing, or because another installer for another product has created a problem, than it might happen exactly what you are describing.