Same here, very annoying:
http://www.autoverohaku.fi/Autojen-tuonti-ja-autovero-forum/
There it is in finnish: “Arkistot: Foorumit.”
I think this is issue in menu and forum page does not show in normal page list.
In menu is says “Sisältötyypin arkisto” which in english is something like “Content archive”.
Other normal pages are type of Page.
How fix this?