yum clean all
yum --disablerepo=atrpms update
Have you installed rpmfusion?
Can you post output of yum repolist?
Just a few things that come to mind.
On a Fedora 9 box that I have these are the repositories:
Code:
glenn@slowhand ~]$ yum repolist
Loaded plugins: fastestmirror, refresh-packagekit
repo id repo name status
repof9 repof9 9 - i386 - RepoF9 enabled: 9,897
rpmfusion-free RPM Fusion for Fedora 9 - Free enabled: 0
rpmfusion-free-updates RPM Fusion for Fedora 9 - Free - Updates enabled: 1,398
rpmfusion-nonfree RPM Fusion for Fedora 9 - Nonfree enabled: 0
rpmfusion-nonfree-updates RPM Fusion for Fedora 9 - Nonfree - Updates enabled: 829
updates Fedora 9 - i386 - Updates enabled: 10
updates-newkey Fedora 9 - i386 - Updates Newkey enabled: 6,671
repolist: 18,805
repof9 is just a local repo that replaces fedora.repo on my computer. You should see Fedora in place of it on your system.