Yum IndexError

[Arthur Pemberton]

I am tring to update to kde-redhat via yum, and durign the process, i am 
getting:

Downloading Packages:
(1/77): koffice-1.3.5-3.0 100% |=========================|  14 MB    13:14
(2/77): libmng-devel-1.0. 100% |=========================|  35 kB    00:02
(3/77): gstreamer-tools-0 100% |=========================|  15 kB    00:00
(4/77): kdebase-devel-3.4 100% |=========================|  81 kB    00:04
(5/77): mDNSResponder-98- 100% |=========================|  38 kB    00:02
(6/77): redhat-menus-3.7. 100% |=========================| 155 kB    00:08
(7/77): xinitrc-4.0.14-1. 100% |=========================|  26 kB    00:01
(8/77): openct-0.6.2-2.i3 100% |=========================| 103 kB    00:05
(9/77): kdewebdev-3.4.0-1 100% |=========================| 7.9 MB    07:36
(10/77): lcms-1.14-1.i386 100% |=========================| 138 kB    00:08
(11/77): gpgme-1.0.2-1.i3 100% |=========================| 201 kB    00:11
(12/77): gstreamer-0.8.8- 100% |=========================| 716 kB    00:41
(13/77): openoffice.org-1 100% |=========================|  21 MB    20:29
Traceback (most recent call last):
  File "/usr/bin/yum", line 7, in ?
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 146, in main
    base.doTransaction()
  File "/usr/share/yum-cli/cli.py", line 640, in doTransaction
    problems = self.downloadPkgs(downloadpkgs)
  File "__init__.py", line 447, in downloadPkgs
  File "repos.py", line 527, in get
  File "mirror.py", line 414, in urlgrab
  File "mirror.py", line 392, in _mirror_try
  File "mirror.py", line 290, in _get_mirror
IndexError: list index out of range

Any ideas on how I can go about fixing this?

# rpm -qa "*yum*"
yum-2.2.0-0.fc3

Please advise.