Hi, Ole! I'm very glad to see you again! At this moment new version of JComments is ready and I've danish translation by Martin Podolak.
I compare your and his translation with WinMerge and found some differencies. I can send you his variant - can you check it? New version contain some new strings...
This obviously means that the preferred language dont get installed during the extension installation, and therefore its missing after installation.
in this case you only need reinstall JComments - all comments and settings will be saved
Maybe an idea to provide the included language packs, as seperate downloads too?
Yes, I going to make different distributions: lite with 2-3 languages, full with all available languages and separated language packages...