Last modified: 2010-05-15 15:59:52 UTC
The errormessage to show that login is needed, in Norwegian says: "Du må innlogging for å se andre sider." It should read: "Du må logge inn for å se andre sider" (or possibly "Du må gå til innlogging for å se andre sider").
The fault occurs in my own mediaWiki installation when setting $wgLanguageCode = "no"; in local settings (and $wgWhitelistRead = array ( "Main Page"); so that users must log in to see other pages).
This is fixed in newer software versions (1.13-svn, r32366), but I don't think interface translations are fixed in old versions.
There is possibility that we can have updates to translations from 1.12 series and above, but the code to do that needs still fixing.