Description of problem:

The first time I login to a freshly installed system, I launch the
program to reconfigure X for 1600x1200.  While the default display of
1024x768 is pretty safe for almost any adapter/monitor configuration,
it is not the most useful or most used (by me anyway).

It would be nice if this reconfiguration could be performed during
firstboot rather than requiring that I login, make the change, logout,
probably restart gdm, and log back in.

Yes, I know I could do some of this with a kickstart install but that
is not usually convenient.

The launch of the configuration program should be optional rather than
just bring it up every time.

While I can individually set my screen resolution to lower values and
have it apply immediately, I cannot set it to values larger than
defined in /etc/X11/XF86Config.