For nVidia users who crash when using Artlantis on 2 monitors.
It concerns above all people using nVidia 8800 and 9800 graphic cards.
In the configuration panel of your nVidia graphic card:
In the left column "Display" then "Configuration of many diplays"
then in the right part of the dialog 1. Choose the display mode nView to use choose "Large Horizontal Desktop (Horizintal Extension)".
This should solved the crash of Artlantis when using 2 monitors.