This chapter describes the X Window system graphical user interface.
It assumes that you have already successfully configured X as
described in the Installation Manual (again, the install manual is
not yet written; for now you will need to use the XFree86 HOWTO, the
contents of /usr/doc/X11, and this chapter). Once you install X, you
can enter the X environment by typing startx or via xdm, depending
on your choice during configuration.