Video import to Cubase artist 6 doesn't work

Hello. I’m trying to import video (.mov) files to my Cubase artist 6 but whenever I choose a .mov file nothing happens. It just accepts the file but then it doesn’t appear anywhere in the editor. I saw a tutorial where they instructed to go to device setup and click ‘video’ to choose the correct video format for .mov (quicktime). However, there is nothing to choose from as the whole menu is empty. Can you help me? Thanks.