If I'm not mistaken, not video_mode, but video_screen has to be set to zero.
Can't test this right now, though.

Edit:
Alan, you might be interested in this , too:
http://www.opserver.de/ubb7/ubbthreads.php?ubb=showflat&Number=288005#Post288005

Last edited by Saturnus; 02/05/10 15:53.