LinuxQuestions.org - Problem with Winbind+PAM

Hi forum, I've run myself into a problem while I was evaluating Winbind+PAM.
I'm setting up a workstation with Fedora 2 to join a Microsoft domain that I have running. Here is a detailed description of the steps that I've taken:

-----------------------------------------8<-----------------------------------------

cat /etc/samba/smb.conf
#Domain Configuration:
workgroup = MY_DOMAIN
security = DOMAIN
password server = MY_PDC
os level = 33 (WIN_NT 4)
winbind separator = +
winbind uid = 10000-20000
winbind gid = 10000-20000
winbind enum users = yes
winbind enum groups = yes
template homedir = home/%D/%U
template shell = /bin/shell
etc............................

-----------------------------------------8<-----------------------------------------

cat /etc/nsswitch.conf
passwd: files winbind
shadow: files
group: files winbind

-----------------------------------------8<-----------------------------------------

cat /etc/pam_smb.conf
MY_DOMAIN
MY_PDC
[BDC]

-----------------------------------------8<-----------------------------------------

net join (relizado con éxito)
[root@0002]# net join -W MY_DOMAIN -U MY_USER
my_users's password: **********
Joined domain MY_DOMAIN.

-----------------------------------------8<-----------------------------------------

WINBIND - wbinfo

[root@0002]# wbinfo -t
checking the trust secret via RPC calls succeeded

[root@0002]# wbinfo -u
domain+user1
domain+user2
domain+user3
etc................

[root@0002]# wbinfo -g
domain+group1
domain+group2
domain+group3
etc................

-----------------------------------------8<-----------------------------------------

[root@0002 /]# getent passwd
DOMAIN+USER1:x:10017:10000:NAME, SECONDNAME:home/DOMAIN/USER1:/bin/shell
DOMAIN+USER2:x:10018:10000:NAME, SECONDNAME:home/DOMAIN/USER2:/bin/shell
DOMAIN+USER3:x:10019:10000:NAME, SECONDNAME:home/DOMAIN/USER3:/bin/shell

[root@0002 /]# getent group
etc...................................

-----------------------------------------8<-----------------------------------------

I think that the PAM 1.0 configuration is correct, here are the details:

login:
auth required pam_securetty.so
auth sufficient /lib/security/pam_winbind.so
auth sufficient /lib/scurity/pam_unix.so use_firts_pass
auth required pam_stack.so service=system-auth
auth required pam_nologin.so
account sufficient /lib/security/pam_winbind.so
account required pam_stack.so service=system-auth
password required pam_stack.so service=system-auth
session required pam_selinux.so multiple
session required pam_stack.so service=system-auth
session optional pam_console.so

system-auth:
auth required /lib/security/$ISA/pam_env.so
auth sufficient /lib/security/$ISA/pam_unix.so likeauth nullok
auth sufficient /lib/security/$ISA/pam_smb_auth.so use_first_pass nolocal
auth sufficient /lib/security/$ISA/pam_winbind.so use_first_pass
auth required /lib/security/$ISA/pam_deny.so
account sufficient /lib/security/$ISA/pam_succeed_if.so uid < 100
account required /lib/security/$ISA/pam_unix.so
account [default=bad success=ok user_unknown=ignore] /lib/security/$ISA/pam_winbind.so
password requisite /lib/security/$ISA/pam_cracklib.so retry=3
password sufficient /lib/security/$ISA/pam_unix.so nullok use_authtok md5 shadow
password sufficient /lib/security/$ISA/pam_winbind.so use_authtok
password required /lib/security/$ISA/pam_deny.so
session required /lib/security/$ISA/pam_limits.so
session required /lib/security/$ISA/pam_unix.so

-----------------------------------------8<-----------------------------------------

Having realized the previous configuration, I ran into the following problem:
Whenever I try to access any workstation already in the Microsoft Domain, I get a Nautilus error message window saying "Access denied or you don't have the necessary rights". The users that I'm using to access this workstations do have the correct user rights over the directories/workstations.

I'm suspecting of a PAM misconfiguration.

I hope you can help me with this issue. If you need me to post any other information that I may have forgotten, please ask.

Thanks in advance...