I have a problem with suse11 and windows 2003 autentication

I have a problem with suse11 and windows 2003 autentication, I can do #net rpc info -U Administrator, but I can’t wbinfo -u and wbinfo -g

test1:~ # wbinfo -u
Error looking up domain users

test1:~ # wbinfo -g
Error looking up domain groups

test1:~ # net rpc info -U Administrator
Domain Name: ICSXX
Domain SID: S-1-5-21-3731639890-1084335429-2863180620
Sequence number: 2040
Num users: 39
Num domain groups: 11
Num local groups: 36

passwd: files winbind
shadow: files
group: files winbind

hosts: files mdns4_minimal [NOTFOUND=return] dns
networks: files dns

services: files
protocols: files
rpc: files
ethers: files
netmasks: files
netgroup: files nis
publickey: files

bootparams: files
automount: files nis
aliases: files

workgroup = ICSXX
printing = cups
printcap name = cups
printcap cache time = 750
cups options = raw
map to guest = Bad User
include = /etc/samba/dhcp.conf
logon path = \%L\profiles.msprofile
logon home = \%L%U.9xprofile
logon drive = P:
usershare allow guests = Yes
add machine script = /usr/sbin/useradd -c Machine -d /var/lib/nobody -s /bin/false %m$
domain logons = No
domain master = No
security = ads
netbios name = Scotts
winbind enum users = yes
winbind enum groups = yes
winbind use default domain = yes
winbind separator = +
winbinduid = 10000-20000
winbindgid = 10000-20000
usershare max shares = 100
encrypt passwords = Yes
password server = server-main.icsXX
realm = ICSXX