[Samba] Auth problem?

[maorui]

When I connected Samba 3.0 as ADS Domain member, I always got error messages
as below.
Nov 25 18:10:12 maorui 11?? 25 18:10:12 smbd[11169]: [2003/11/25 18:10:12,
0] auth/auth_util.c:make_server_info_info3(1017)
Nov 25 18:10:12 maorui 11?? 25 18:10:12 smbd[11169]:
make_server_info_info3: pdb_init_sam failed!
And Windows client cannot show share list.

What's the error messages mean?