I have a matrox millenium G550 installed into our system.
It works with resolution 800*600 but when we go to 1024*768 we get no
signal. What good be the problem. (both redhat 9.0 as fedora core 2,
has those problems). We installed also the mgapdesk, but that doesn't
work also.

Has anyone an idee?

Kind regards..