After installing the Security Update 005-2009 in Mac OS X Server v10.5, Mail Server and ClamAV may not start up. These messages may appear the system.log: org.clamav.freshclam6111 com.apple.console Notice ERROR: Incorrect argument format for option –checks (-c) com.apple.launchd[1] com.apple.console Warning (org.clamav.freshclam6112) Exited with exit code: 1 com.apple.launchd[1] com.apple.console Warning (org.clamav.freshclam) Throttling respawn: Will start in 10 seconds