Yum error on rpmfusion

[Jim]

FC10/KDE

I have the rpmfusion repo setup,but I get a yum error message:

Could not retrieve mirrorlist 
http://mirrors.rpmfusion.org/mirrorl...d-10&arch=i386 
<http://mirrors.rpmfusion.org/mirrorlist?repo=free-fedora-updates-released-10&arch=i386> 
error was
[Errno 4] IOError: <urlopen error (-2, 'Name or service not known')>
Error: Cannot retrieve repository metadata (repomd.xml) for repository: 
rpmfusion-free-updates. Please verify its path and try again

Does anyone not what know what is going on ??