[CentOS] Samba, AD and non AD Machines

Hi All,

I have configured Samba 3.0.23 to work with Active Directory.  Based on
all the tests shown here:
http://us3.samba.org/samba/docs/man/Samba-Guide/unixclients.html#adssdm

Things are working as expected.

Most machines and users are working as expected.

I do have some Windows machines on another subnet, NOT joined to the
domain that are giving me grief.  Going to
Start->Run->\\ip.of.samba.server I get the following error: The format for
the computer name is invalid

I can ping the samba server without problems.

Reviewing the Samba logs I see:
"pam auth crap domain" messages in winbind.log

In the machine.log file I see:
[2007/10/23 03:05:17, 3] auth/auth.c:check_ntlm_password(221)
  check_ntlm_password:  Checking password for unmapped user
[domain]\[acronis]@[COMPUTER] with the new password interface
[2007/10/23 03:05:17, 3] auth/auth.c:check_ntlm_password(224)
  check_ntlm_password:  mapped user is: [domain]\[acronis]@[SORTER]
[2007/10/23 03:05:17, 3] smbd/sec_ctx.c:push_sec_ctx(208)
  push_sec_ctx(0, 0) : sec_ctx_stack_ndx = 1
[2007/10/23 03:05:17, 3] smbd/uid.c:push_conn_ctx(345)
  push_conn_ctx(0) : conn_ctx_stack_ndx = 0
[2007/10/23 03:05:17, 3] smbd/sec_ctx.c:set_sec_ctx(241)
  setting sec ctx (0, 0) - sec_ctx_stack_ndx = 1
[2007/10/23 03:05:17, 3] smbd/sec_ctx.c:pop_sec_ctx(339)
  pop_sec_ctx (0, 0) - sec_ctx_stack_ndx = 0
[2007/10/23 03:05:17, 2] auth/auth.c:check_ntlm_password(319)
  check_ntlm_password:  Authentication for user [acronis] -> [acronis]
FAILED with error NT_STATUS_INVALID_COMPUTER_NAME
[2007/10/23 03:05:17, 3] smbd/error.c:error_packet(146)
  error packet at smbd/sesssetup.c(99) cmd=115 (SMBsesssetupX)
NT_STATUS_INVALID_COMPUTER_NAME


Any thoughts or suggestions would be appreciated.

Shawn