PROBLEM DESCRIPTION: RedhatEnterprise RC1 does not give the option to
manually install X windows.
In order be able to use the GUI after the installation, you must select
the "Everything" option during the package selection screen. Otherwise,
it will stay in text mode.
This sounds like a comps file problem.
this is by-design (targetting the server for headless
operations). 6.2.2 (EE HA) also had the same