[Yum] Cannot rum yum

[Erik Saline]

Running Fedor Core 4 with the latest kernel.  Every command I try and run gives me this error.
[erik at localhost ~]$ yum list
Traceback (most recent call last):
  File "/usr/bin/yum", line 27, in ?
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 75, in main
    base.getOptionsConfig(args)
  File "/usr/share/yum-cli/cli.py", line 207, in getOptionsConfig
    self.plugins.setCmdLine(opts, self.cmds)
AttributeError: DummyYumPlugins instance has no attribute 'setCmdLine'

Im new to linux and yum.  Does anybody have a list of some good repositories.

Erik