Winbind ADS client configuration problem

Hello Experts,

Need your help desparetly.

We are on the job of configuring  Windows 2k3 ADS winbind clients in the RHEL ES 4 machines. In the attached document, I have given the steps which we follow to do this. We've followed the same procedure for RHEL 5 version and it works perfectly fine. But when we start doing it for RHEL 4, it gave some issues.  First, winbind service isn't starting properly, it gave "winbindd dead but subsys locked" error and finally we made it running by upgrading all the Samba packages and by executing the following commands:
 setsebool -P "winbind_disable_trans"=1
 setenforce 0

And then, we were able to join the RHEL 4 Linux host to ADS server and 'wbinfo' provides the user account informaion. But when we try to connect the server using ADS account, its throwing out the error: "Server unexpectedly closed network connection" but when i try to connect using Linux local user account, it works (but not ADS user accounts).

I believe this problem is happening only because of PAM configuration file (/etc/pam.d/system-auth).
Could you please verify this file?  FYI, the same configuration is working fine with RHEL 5 version.

Please let me know if you require more inputs on this issue.

Thanks in advance.

Ashok

Redhat-AD2k3-instructions-bkp.doc