If system-config-display is started from a terminal window, these warnings are
displayed:

[root@typhoon ~]# system-config-display
/usr/share/system-config-display/xconf.py:32: DeprecationWarning: rhpl.monitor
is deprecated; import rhpxl.monitor instead.
  import rhpl.monitor
/usr/share/system-config-display/xconf.py:33: DeprecationWarning: rhpl.videocard
is deprecated; import rhpxl.videocard instead.
  import rhpl.videocard
/usr/share/system-config-display/xconf.py:35: DeprecationWarning: rhpl.mouse is
deprecated; import rhpxl.mouse instead.
  import rhpl.mouse
/usr/share/system-config-display/xconf.py:37: DeprecationWarning: rhpl.xhwstate
is deprecated; import rhpxl.xhwstate instead.
  from rhpl.xhwstate import *

I suspect the repair is trivial, but these should really be cleaned up before
FC5 release.............

This is with a Rawhide tree as of 02 Jan 06.