Swedish language???

I′ve upgraded to 2.07 but now the swedish language-file won′t work anymore. I wonder why. In the first version there were no problems but efter upgrading and downloading the latest file I can′t get the blog into swedish again. The file I′m using is named sv_SE and the same is written in the config-file but it′s still in english even though I′m using the mo-file as described. Someone has a clue?