Have a Dell Latitude D630 Laptop and docking station with a Dell 17" VGA LCD display attached to the docking station. I recently installed fedora 9 and did a yum install update to bring everything current. I would like to use the laptop's built in LCD display and the docking stations attached LCD display concurrently as a extended desktop when docked and revert to a the Laptops LCD only when undocked. Right now the two monitors appear as cloned rather than extended. I first went through the Gnome desktop system>administration>display the video card displays correctly and the Dell built in LCD displays correctly so I don't think its a driver issue. In the display menu I selected dual head and set to span, but when clicking OK nothing happens. I browsed around Google for answers and found some references to dual head configurations for other systems with dual video cards and such and editing the xorg.conf file. Took some of these samples and played around with my xorg.cong file but with no luck. Any advice?