Aengus Martin wrote: > I installed the standard fc4 on my desktop with a matrox g550, and > everything was fine. Wow, I had lots of troubles, green and black screens, and system freeze! There are also few bug report about that on bugzilla. It worked for me with a second monitor attached to the dual head output. Then I replaced xorg-x11[-xfs,libs] with those for fedora core 3, and now everything is fine! Mario