Kickstart won't start properly (system-config-kickstart-2.7.4-1.fc7)

[Carlo Wise]

I tired starting kickstart to test creating an installation file but
kickstart will not start and generates an error report:

Component: system-config-kickstart
Summary: TBefdff07c selinuxPage.py:75:__init__:AttributeError:
'NoneType' object has no attribute 'set_model'

Traceback (most recent call last):
  File "/usr/bin/system-config-kickstart", line 81, in <module>
    kickstartGui.kickstartGui(file)
  File "/usr/share/system-config-kickstart/kickstartGui.py", line 165,
in __init__
    self.firewall_class = firewall.Firewall(xml, self.ksHandler)
  File "/usr/share/system-config-kickstart/firewall.py", line 99, in
__init__
    self.selinuxWindow = selinuxWindow(selinuxXml)
  File "/usr/share/system-config-kickstart/firewall.py", line 40, in
__init__
    selinuxPage.__init__(self, xml, doDebug, inFirstboot)
  File "/usr/share/system-config-securitylevel/selinuxPage.py", line 75,
in __init__
    self.enabledOptionMenu.set_model(listStore)
AttributeError: 'NoneType' object has no attribute 'set_model'

Local variables in innermost frame:
xml: <glade.XML object (PyGladeXML) at 0x9fa3234>
listStore: <gtk.ListStore object (GtkListStore) at 0xa588be4>
doDebug: None
self: <firewall.selinuxWindow instance at 0xa584eec>
inFirstboot: False