samba - Feb 2004 - Showing SID instead of username in security section of file properties

Hi,

I have 3 Samba servers set up at different time. Now all of them have been
upgraded to 3.0.2. I use Winbindd to handle users from Windows Domain. They are
working pretty good except one of the server having problem translate SID to
username. Every time when I try to check the security setting for a file from a
Windows 2000 workstation, it will display "Domain Users",
"Everyone" and "s-x-xx...". The SID is actually the owner of
the file. I have checked the file properties on Linux system, it can read the
owner's name correctly. Using "wbinfo -s" on that machine check
the username, it works fine. This only happens on one server. wbinfo -u or -g
works fine. smb.conf file on that server are similar with the other servers.
What should I check to work around this issue?

Thanks,

Dennis