Misc Spam & Virus Question

On two of my servers, the spam assassin and clam av doesn't show in the status on the system information and when I click on the Spam and Virus Scanning link, the "Enable ClamAV Server" Button doesn't show. When I try to enable the spam or clam av servers on those systems, it always fails with errors about the virus libraries being out of date. Any ideas?

Closed (fixed)