To configure X Windows you must first select your video card. Scroll down
the list of supported cards until you locate the card in your machine.
Section 5.3.2 may help you determine the video server
that matches your hardware. If your card is not listed it may not be
supported by XFree86. In this case you can try the last card entry on the
list (Unlisted Card) or a commercial X Windows server, such as Metro X. The
next step is to select your monitor. If your monitor is not listed you can
select one of the generic monitor entries or ``Custom'' and enter your
own parameters. Custom monitor configuration is recommended only for
those who have a sound understanding of the inner workings of CRT
displays. The average user should probably use one of the generic selections
from the list. After selecting a monitor you need to tell Xconfigurator
how much video memory you have. Move the highlight to the appropriate
list entry and then press 
or 
to continue.
For the next step it is recommended that you select the
default (No Clockchip Setting) entry, but experienced users may
want to select a specific clockchip.