Thanks, Gerard! You have me on the right path. I now have dual screen working. Had to change my 'virtual' setting in xorg.conf to 3600x1536 and issue 'xrandr --output LVDS --left-of TMDS-1'. Only problem now is that my Gnome panel and taskbar are on the external (right) screen and I'll rather them be on the internal (left, laptop) screen. Any tips for making this a more permanent situation? When I undock the laptop, is it going to go back to my normal laptop display with the panel and taskbar in the correct place and the resolution set correctly? I guess I shall see... And, after I undock, if I plug it back into the dock, will it automagically give me dual screen again? Or, will I have to issue the xrandr command(s) again? Thanks, BamaRob