You must have a player installed that digests opp video files to watch this document http://en.wikipedia.org/wiki/File:Demonstratie_van_de_tango_1930.ogv http://en.wikipedia.org/wiki/File:Demonstratie_van_de_tango_1930.ogv#file Sorry but the site is a bit nasty and hides the file sometimes. No, There is a smily in the way. DF server alters the address to ../File:Grin:emonstratie_van_de_tango_1930.ogv now you have to change the url to ...Demonstration.. manually in the address field. Then it should work.