Seems like installer wrongly interprets user language. At least I see a problem here:
- computer language is EN;
- user locale settings is LT (Lithuanian);
- mp3tag language is EN;
- mp3tag installs as Lithuanian;
- changing mp3tag language does not change some labels.
Maybe it looks like a feature. But what it could be, if user is englishmen on lithuanian's computer, which uses Windows in chinese with russian locale?