Each Linux distribution has its own X Window configuration program. XFree86 also has a text-basedconfiguration program which is complex to use. But what if both the distribution program and xf86config, the text-based configuration for XFree86, do not seem to do what you need? XFree86 also comes with a graphical configuration tool.
The name of the graphical program is XF86Setup. This will launch a graphical window and allow you to configure the X Window Server. So if you don't like the console configuration programs, you can use this one:

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