Hello,

There is a questionYesNo without a question in amarok.po. It comes from 
EngineController.cpp.

        KGuiItem installButton( i18n( "Install MP3 Support" ) );
                    if(KMessageBox::questionYesNo(MainWindow::self()
                    , i18n("Amarok currently cannot play MP3 files.")
                    , i18n( "No MP3 Support" )
                    , installButton
                    , KStandardGuiItem::no()

The answer "No" doesn't make sense unless Amarok asks whether you want to 
install MP3 support or not. :)  

Regards,
Yukiko