On Mac X2goclient will be shown in the language chosen at the time of installing OS X (system wide). If the user chose danish as the language upon first starting the machine, and then later changes the language to english for his account, x2goclient will still be in danish, despite everything else he starts being in english.
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Anders Bruun Olsen
It-ansvarlig
Det Danske Sprog- og Litteraturselskab
(Society for Danish Language and Literature)