Don´t know how to disable the intro.
In my case i could go past it by clicking left mouse (try several times) when the screen got black. Is the black screen displayed just a moment after the disc verification?
Try to the intro file with a media player of your choice. It is located in the folder: \SilentHunterIII\data\Movies\Intro
Does it work?
Please forgive my bad language skills.
