Version: (using KDE KDE 4.0.0) Installed from: Ubuntu Packages When I click "open" in Ark and browse to my rar archive, I don't see the rar file (filter is on supported files). Also trying to open a rar file directly doesn't work either. I've the non-free version of unrar installed.
From http://bugs.kde.org/show_bug.cgi?id=155992#c3 : « Ark in KDE 4.0 does not support RAR files. The support will (hopefully) come back in 4.1. »
*** Bug 158081 has been marked as a duplicate of this bug. ***