One application I am in the process of packaging is very language specific. It is a vocabulary trainer. It comes with three languages (all the menues are then in that language and also the 'source' language of the vocabulary).
The language which I use kde with is english (I never bothered to change it to german). Now I need to change it to german, since I want to learn german-swedish vocabulary. However I can not choose anything but 'C' as the kde-language. I checked in /usr/share/locale/de and there are lots of k*.mo files. Do I need to install an additional package? which one? Is there a trick?