Description of problem:
When using system-config-kickstart to open a kickstart file that contains
certain timezones, it will hang.

When I attempt to open such a file, I see:

Traceback (most recent call last):
  File "/usr/share/system-config-kickstart/kickstartGui.py", line 285, in
on_activate_open
    self.applyKsdata()
  File "/usr/share/system-config-kickstart/kickstartGui.py", line 311, in
applyKsdata
    self.basic_class.applyKsdata()
  File "/usr/share/system-config-kickstart/basic.py", line 228, in applyKsdata
   
self.timezone_combo.list.select_item(self.timezone_list.index(self.ksdata.timezone["timezone"]))
ValueError: list.index(x): x not in list

So, it appears that the timezone that I chose was not included in the list that
system-config-kickstart is aware of.  If I change the timezone to
America/Denver, it works fine.


Version-Release number of selected component (if applicable):
system-config-kickstart-2.6.19.1-1.el5

How reproducible:
Always

Steps to Reproduce:
1. Use timezone of US/Mountain (or other such timezones) in a kickstart file
2. Use system-config-kickstart to open it.
  
Actual results:
The app hangs and the open dialog box will not close.

Expected results:
It should allow timezones such as US/Mountain.

Additional info:
An update to the tzdata package would fix it.  Adding US/Mountain to
/usr/share/zoneinfo/zone.tab solves the problem.