My monitor is not automatically found (both using GUI install and Xconfigurator). It's a Dell 1025HE (1000 HS Series). This model was found in previous releases.
This defect is considered MUST-FIX for Florence Release-Candidate #2
This monitor is listed: Dell; Dell D1025HE; del6124; 31.0-92.0; 50.0-120.0; You must have it hooked up to a board that is not doing proper DDC probing. What video board are you using? Can you please attach /var/log/XFree86.9.log after you set up X with Xconfigurator?
Note that you must also use a standard video cable... ie. one which separates output into four different cables will not work.