[squid-users] ntlm_auth utils not working as non-root user

I restarted the smb service yesterday (I haven't restarted it in a long
time) and now the ntlm_auth command doesn't work as a non-root user. I
discovered this when Squid started prompting everyone for login info,
and it never accepts the login. When I run "ntlm_auth --username=swc
--password=<not shown>" as user squid, here's the results:
 
[2004/01/22 12:05:11, 0] utils/ntlm_auth.c:get_winbind_domain(127)
  could not obtain winbind domain name!
could not obtain winbind separator!
Reading winbind reply failed! (0x01)
: (0x0)
 
What could the problem be?? I've checked the permissions on the pipe
file, and here they are:

[squid@nbproxy01 winbindd_privileged]$ ls -la
total 8
drwxr-x--- 2 root squid 4096 Jan 21 17:39 .
drwxr-xr-x 4 root root 4096 Jan 22 12:01 ..
srwxrwxrwx 1 root root 0 Jan 21 17:39 pipe
[squid@nbproxy01 winbindd_privileged]$
Received on Thu Jan 22 2004 - 10:13:36 MST