Description of problem:
I configured VNC to serve up Gnome when I connect.  I click the Start
Here button navigating to network settings.  I had defined the
hostname during installation to simply DeathRow.  Trying to change it
to DeathRow.rownetco.com the VNC session becomes unusable.  The
pointer changes from an arrow to a single dot.  The commands I type
actually are executed but the screen does not update.  If I close the
VNC session then reopen it the session picks up where I was last. 
This happes with a terminal session as well.  I right click on the
desktop, select new terminal.  When it opens I type switchdesk but
nothing echos in the terminal session.  Close / reopen VNC and the
switchdesk screen is available from the previous session.  I switched
to KDE and restarted the server.  When I launched VNC on windows
connecting to FC-1 I am prompted for a password and a subsequent
screen appears, all white, nothing on it. 

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. connect via VNC
2. use Start Here drill to network -> DNS
3. try changing hostname to hostname.domainname.com 
  
Actual results:
VNC session pointer changes from arrow to period ( . )


Expected results:
hostname gets changed


Additional info:
see above, similar wierdness in terminal session.