Ok samj.
It's just that i had that experience before and i was stuck with my own launguage wich i did not want, and i did that.
And it was not available in that list you mention.
Don't ask me how or why that happened.

Ps. it was an older build then this, but not so long ago.
With Parthas current build, i now only have English or system launguage to choose from in that list.
And i just checked, all folders are there in the Gimp folder, even Latin, but no Latin to choose in that list in Gimp for example.
Wich is fine by me as long it's English work in Gimp.

Maby it is suppose to be like that and you haveto manually download launguage-files.
I don't have a problem so it's fine, just info.

Update! i just tryed it myself my own suggestion and it does Not work anymore.