I'm running Ubuntu 10.10 with a GeForce GT 430. I just plugged in my HP ZR30W monitor and the maximum resolution the nvidia configuration tool will allow is 1280 x 800. It should be 2560 x 1600.

I have two monitors connected. The other one is an HP L2335 running at 1920 x 1200. (I used to have two of these connected and the nvidia settings were fine for that setup.)

Does anyone know how to configure xorg.conf for dual monitors with these two monitors I'm using? Every dual monitor setup I've ever had was based on two monitors with the same resolution. And ever since Ubuntu moved away from using xorg.conf as the primary configuration file I haven't understood what goes there and what doesn't -- or how to use that file correctly any longer.