Hi Matt,
Thank you for the post.
It means that your FEP definition update failed to the latest version. Are there any event logs error about FEP update? Please also check the C:\Windows\WindowsUpdate.log to know the update details.
To quick fix the issue, you could update definition manually following KB935934.
http://support.microsoft.com/kb/935934
If there are more inquiries on this issue, please feel free to let us know.
Regards
Rick Tan
TechNet Community Support
