[CentOS] system-config-display problem

Had centos 4.1 set up and running with X. Had to replace the monitor to an Acer LCD monitor (model AL1714). When I try to reconfigure X, "system-config-display" seems ok going through the first stage of detecting the graphics card but then returns a floating "Input not supported" message to the screen and nothing happens afterward. Any hints on solving this issue will be greatly appreciated.

--------------------------------------------------------------------- Benoit Casault Bedford Institute of Oceanography Tel:(902) 426-3843 Biological Oceanography Section Fax:(902) 426-9388 1 Challenger Drive e-mail: casaultb@mar.dfo-mpo.gc.ca Dartmouth, N.S. B2Y 4A2, Canada ---------------------------------------------------------------------