What I think might be the problem. It appears that I don't get a full colour depth resolution at my left screen. I don't know why, but I guess xorg.conf can at least be used to solve the problem. It appears that something that went right by default earlier, now goes wrong....
I have 2 Samsung synCmaster 204B monitors, and a GeForce 7900 Nvidia graphics card. I use digital video connection to the monitors from the graphicscard. I think that my left monitor is currently not getting the 24 bit default resolution: -- Colour depth problem on one display following upgrade to edgy https://launchpad.net/bugs/71094 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs