Description of problem:

Traceback (most recent call last):
  File "/usr/sbin/pup", line 617, in ?
    main()
  File "/usr/sbin/pup", line 613, in main
    pup.run()
  File "/usr/sbin/pup", line 451, in run
    self.doRefresh()
  File "/usr/sbin/pup", line 291, in doRefresh
    self.populateUpdates()
  File "/usr/sbin/pup", line 347, in populateUpdates
    self.updateMetadata.add(repo)
  File "/usr/lib/python2.4/site-packages/yum/update_md.py", line 265, in add
    md = obj.retrieveMD(mdtype)
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 867, in retrieveMD
    cache=self.http_caching == 'all')
  File "/usr/lib/yum-plugins/rhnplugin.py", line 299, in _getFile
    raise yum.Errors.RepoError, \
RepoError: failed to retrieve repodata/updateinfo.xml.gz from rhel-i386-client-5
error was [Errno -1] Metadata file does not match checksum

Local variables in innermost frame:
e: [Errno -1] Metadata file does not match checksum
url: None
text: None
self: rhel-i386-client-5
cache: False
reget: None
relative: repodata/updateinfo.xml.gz
start: None
checkfunc: (<bound method RhnRepo.checkMD of <rhnplugin.RhnRepo object at
0xa0335ec>>, ('updateinfo',), {})
copy_local: 1
end: None
local: //var/cache/yum/rhel-i386-client-5/updateinfo.xml.gz


Version-Release number of selected component (if applicable):
1.3.28-13.el5

How reproducible:
Easily

Steps to Reproduce:
1. By starting the Software Update application
2.
3.
  
Actual results:
Application crashes with "Exception Occurred" Error.

Expected results:
Install software updates using Software Updater

Additional info: