The keyboard suffers from atrocious key bounce, as you will probably have noticed by the time you get this far. A little application called "AccessX" will fix this problem.
1. Obtain the tarball and follow the installation instructions given at:
http://www.rehab.uiuc.edu/accessx/freewareaccessx.html
2. Add the following lines to /etc/X11/xdm/Xsession after the section where it runs all the system xinitrc shell scripts:
# inserted to prevent key bounce
ax +bouncekeys
ax -timeout
ax bouncedelay 5
# end inserted lines
(This is for RedHat 7.3: other distros may be different, but essentially you need to find a file from which scripts are run every time the X-server starts up).