From root console, (Ctrl-Alt-F2) or root Terminal-Super User Mode you can start "video" Scroll down and hit Plug&Play or choose the right "Flat Panel 1440x900" for your monitor. (Spec's found on the net)
It's also found in the PCC centre, configuring graphics server.
Also you can edit the /etc/X11/xorg.conf file, carefully !!