squid and snmp problems

This one's got me stumped.

I'm running squid 2.1.PATCH2, my SNMP config is as follows:

snmp_port 3401
snmp_mib_path /hdd/2/squid/etc/mib.txt

snmp_agent_conf view all .1.3.6 included
snmp_agent_conf view squid .1.3.6 included
snmp_agent_conf user squid - all all public
snmp_agent_conf user all all all all squid
snmp_agent_conf community public squid squid
snmp_agent_conf community readwrite all all
acl snmpmanagementhosts src 99.99.99.99/255.255.255.255
snmp_acl public deny all !snmpmanagementhosts
snmp_acl readwrite deny all

Whenever I restart (-k reconfigure) squid with this config, I get the
following:

1999/03/24 13:32:07| parse_snmp_access: Unknown community public!
1999/03/24 13:32:07| parse_snmp_access: Unknown community readwrite!

Any ideas?

-- 
 Michael 'Moose' Dinn, Twisted Pair Network Consulting Incorporated
 dinn@moose.to // 902 423 4700 (voice) // 902 423 3661 (fax)
 "Duct tape is like the force. It has a light side, a dark side, and
  holds the universe together."