Ah, OK, thanks very much. Where is a good source for correct .CSV files to import, then? I'm concerned with soaring flights in FSX, and often use the Worldwide Soaring Turnpoint Exchange:
http://soaringweb.org/TP

They have files in various formats for different soaring software, but I don't think there is anything there in Plan-G format, so I end up just making my own as I need them.

I downloaded and imported the Alps Turnpoints (AustriaTurnpointsplan-g.zip) from this website:

http://www.ukvga.org.uk/turnpoints.php

The .CSV imports fine, and the waypoints show up in Plan-G, however, right-clicking any of them to add to flight plan, or edit user waypoint, results in a CTD. I ended up having to delete all the added waypoints to be able to use Plan-G again.

What could be the problem?