samba - May 2012 - samba ADS security mode not accesible by work group computer

Dear Concern,
                     I have little problem regerding samba share i had
tried my best to search it from internet but cant get it.samba security
mode is ADS and domain (Server 2003 SP2) is joined successfully each domain
member/user can access its shares but i cant access these shares from a
work group(not joined domain) computer windows having XP or win 7.i had
chaged the security options on workgroup computer's console "Send
unencrypted password to third party SMB srver" i have enabled this option
and also changed the second option "NETWORK SECURITY:LAN MANAGER
AUTHENTICATION LEVEL:SEND LM & NTLM-USE NTLMV2 SESSION SECURITY IF
NEGOTIATED "
and important thing to mention here is that iam using fedora 14.kernal
3.5.5-68.
before this i was using RHEL 5.1 and it doesnot create such kind of problem
for this same configuration...
plz help me about this i am stuck up and having a lot of problem
...............
i waiting for your kind response........
-- 
Regards,

ADNAN JAHANGIR

From: Adnan Jahangir <writetooadnan at googlemail.com>
Date: Mon, 7 May 2012 11:17:20 +0500
> Dear Concern,
>                      I have little problem regerding samba share i had
> tried my best to search it from internet but cant get it.samba security
> mode is ADS and domain (Server 2003 SP2) is joined successfully each domain
> member/user can access its shares but i cant access these shares from a
> work group(not joined domain) computer windows having XP or win 7.
How did you input your username when you accessed from workgroup
computers? I think if you input DOMAIN\UserName pattern and correct
password, you would access without any security changes.

See "map untrusted to domain" parameter in smb.conf(5)

---
TAKAHASHI Motonobu <monyo at samba.gr.jp>