Translation of the PlugIn fails

Hi,
The PlugIn works like a charm, and I’d like to do a translation.

I took the moderate-selected-posts.pot, edited it with PoEdit and uploaded moderate-selected-posts-de_DE.mo into the “lang” directory of the plugin.

But nothing happens… I also tried de_DE.mo, but to no avail.

There was an error when saving, because the entry “Moderate Selected Posts” appears two times – I removed one from the .pot, but it did not work also.

Any hints?

http://wordpress.org/plugins/moderate-selected-posts/