Hey all,
If you've installed or upgraded ClamAV in the last few weeks, check to make sure you have these lines in your /etc/rc.conf:
    clamav_clamd_enable="YES"
    clamav_freshclam_enable="YES"
A change in the the port was made and now clamav installs startup files.  On older toasters, I build a run file that was installed and this should now be removed:
   rm /usr/local/etc/rc.d/freshclam.sh
   rm /usr/local/etc/rc.d/clamav.sh
  /usr/local/etc/rc.d/clamav-freshclam.sh restart
  /usr/local/etc/rc.d/clamav-clamd.sh restart
Matt