Haha, okay, link is back indeed. Strange that Microsoft can't manage to keep their stuff available all the time.

Anyway, I guess stabbing in the dark won't help much, I have not moved anything at all. When I installed X-Plane I ran Plan-G once without problems, haven't used it much since, now that I have addon scenery installed I wanted to re-run to update but it does not work (and the old data was gone since I missed out on making a copy before). Again, the very same install on a portable in a different environment works fine.

I can't find the night goggles either. Maybe we should put the knives away, I'm all set for the moment anyway.

Thanks for the prompt answer Tim,

I have tried, downloaded and reinstalled SQL-Server CE yesterday (at least the download still worked), to no avail.

Now I've had the idea to copy my X-Plane install onto a portable HD, take it to work and try to build the database on the old Win7-PC we still have in a corner here.

Strange enough, Microsoft removed the download as of today, the link is no longer working, neither here nor from the homepage. I'm afraid the've buried SQL-CE for good - since it won't work with FCU?!

I think I still have a copy in my downloads folder at home but it seems like this is really bad for PlanG?!

Edit: Luckily I've found that MS has not taken the German version off the server yet, I've managed to reach and download it via Google.
I've built a new database on that old machine, now containing all my precious addon scenery data.

Seems proof that the issue is neither Plan-G nor X-Plane nor some scenery, but Windows. Worst case, probably.

That fits. Here it's not working since FCU, too. Well it kinda helps not to be alone, but I'd rather had it working... ???

I get a popup : "Failed to build database (The database file is larger than the configured maximum database size. This setting takes effect on the first concurrent database connection only [Required Max Database Size (in MB; 0 if unknown)=257]) See log file for more details.

In the Log file is nothing else, last two lines:
"02:01:15.4 Writing  197684 Intersections
02:01:18.0 StartBuild_Executed: The database file is larger than the configured maximum database size. This setting takes effect on the first concurrent database connection only. [ Required Max Database Size (in MB; 0 if unknown) = 257 ]"

What's going wrong here?