> You could also try booting from a live CD and copying the xorg.conf
> file, assuming the resolution is correct in the live session.
I used a similar method to get my wireless working in another distro...
boot Ubuntu LiveCD where wireless "just worked", grab info on which
kernel modules were loaded, iwconfigs, etc., then rebooted into the
Linux distro where my wireless was not working and found the difference.
LiveCDs are the best thing since sliced apple pie.