Reposting this because earlier I seem to have put it in a dead thread. Dell Latitude CPxJ. Upgraded to XP on a Dell Latitude CPxJ (ATI Rage Mobility AGP card) and the dual monitor feature I enjoyed with Windows 98 is now gone.
Elsewhere on the internet I have found advice that led me to try to install three different alternative drivers: a HP driver, one on the MS site, and an "alternative" driver recommended on DriverGuide.com
With all of them I still see only one monitor when I go to Displays/Settings, and see no multiple monitor options. In the course of the various reboots and rollbacks, which monitor is black switched: I now am now looking at my secondary monitor, while the CPx laptop screen is black. Many reboots ago, it was the other way around.
In Display Manager under Display Adapters I see ATI Rage Mobility (one driver). Under Monitors I see three listings: Dell D2026T, Digital Flat Panel(1024x768) and Generic Television. All three are supposedly "working properly" and "enabled."
ATI gives only the most generic support for its products bundled with laptops, and refers me to Dell. I have diligently searched Dell and sent them a request but they do not answer.
I sincerely hope I will in fact be able to find a Solution here.
--Jim Gasperini a/k/a Cockeyed