Freebsd testing with squid. User authentication works, now trying to get group based auth

[Derrick MacPherson]

as the subject says, when I try to test group auth, I get:

/usr/local/libexec/squid/wb_group -d
/wb_group[19095](wb_check_group.c:344): External ACL winbindd group
helper build Jul 27 2005, 17:33:37 starting up...
/wb_group[19095](wb_check_group.c:308): Can't contact winbindd. Dying

proxy1# ps -axu|grep win
root  18826  0.0  0.4  7100  4224  ??  Ss    9:21AM
0:00.05 /usr/local/sbin/winbindd
root  18827  0.0  0.4  6044  3720  ??  I     9:21AM
0:00.00 /usr/local/sbin/winbindd


Where can I start checking?