Language never changes according to localization of device

[GitHammer]

ShareKit v2.

I was forced to actually replace the contents of en.lproj with Norwegian content in ShareKit.bundle, because ShareKit just wouldn't display anything besides English.

Tested both on an 3GS with iOS 4.3 and on an 4S with iOS 5.1, as well as on emulator running iOS 5.1.

Initially, Norwegian was displayed - but then suddenly it was all English. I tested with changing the english word for "Cancel" to "CancelJubaJuba", and it was displayed on the Cancel-button. I first suspected the bundle to be "ignored" completely, but it seems to be a case of actually not knowing the current localization.

Anybody else seen this? How to fix it? A bit awkward to replace the english version with the language of choice.