Sent to Axel and Håvard, CC'ed to the list...
From the stats you'll see at
http://people.debian.org/~seppy/d-i/translation-status.htm, you'll see that Nynorsk translations of D-I need some attention, especially level1 and 2 (level 2 is mostly tasksel).
Please take care of updating these translations.
PS: level1 (the D-I "master" file has currently no name in the Last-Translator field).