Since v. 11.3, openSUSE no longer uses an Xorg.conf file and Sax2 has been deprecated.
This is because XOrg now uses dynamic automagic to detect your correct settings. You now only need a static xorg.conf file if the autodetect fails or you want to do something special.
If you just want to change screen properties, use the Display section in System Settings.
=================================
However, if you
really need an xorg.conf file, type the following to generate one from the detected configuration:
**Messing about with this can seriously b*ll*x your rig! DO NOT attempt unless you absolutely know what you're doing**=================================