Looks like many "does-not-run" or "graphics is ugly" problems are caused by not latest drivers.
Not all of them, but many.
Could you, please, try to update your system to the latest drivers available for your videocard and OS?ATi/AMD
users go here - http://support.amd.com/us/gpudownload/Pages/index.aspxnVidia
users go here - http://www.nvidia.com/Download/index.aspx
(you may have turn Extension Limit "Off"
in nVidia Control panel, thank you, unexpectedgreg
users, sadly, still have to watch this thread - http://www.dyson-game.com/smf/index.php?topic=409.0
It is not like we don't want you to write here, nothing like that at all.
But you may save yourself much time by just updating the drivers. It should reflect well on all other games, btw!