samba - Sep 2014 - samba global catalog not defined

Hi agains....im new in samba4...so i have some errors..aparently after 
compiled all runs ok, i create my domain, create my user with admin 
privilege, add machines correctly..for that way all see ok..after 
install rsat, connected into my samba server start the problems...when i 
create a new user send me a kind of error (from w7 pc using rsat): (im 
spanish user sorry manual translate, it a resume of more important):

1- windows can check if user is the only one because the next error: 
server not funtional....windows create the acounts....check if global 
catalog is functional..

eventually create user but accesing user propties, label "member of": 
send me more error:
2- cant entablished contact with global catalog (GC), its necesary a 
global catalog to put a list....global catalog  it not online...etc

after that show me the group of that user...

why that??? ...is normal??

thanks agains



-- 
Administrador de Redes
Nodo Provincial ESILT

                               OS: Debian 7.5 wheezy
           ,met$$$$$gg.        CPU: Intel Core i3-3220 CPU @ 3.3GHz
       ,g$$$$$$$$$$$$$$$P.     RAM: 2GB
     ,g$$P""       """Y$$.".   Kernel: i686 Linux
3.2.0-4-686-pae
    ,$$P'              `$$$.   Packages: 3429
   ',$$P       ,ggs.     `$$b: Shell: bash 4.2.37
   `d$$'     ,$P"'   .    $$$  Resolution: 1280x1024
    $$P      d$'     ,    $$P  DE: Gnome 3.4.2.1
    $$:      $$.   -    ,d$$'  WM: Mutter
    $$\;      Y$b._   _,d$P'   WM Theme: Adwaita
    Y$$.    `.`"Y$$$$P"'       GTK Theme: Adwaita [GTK3]
    `$$b      "-.__            Icon Theme: gnome-brave
     `Y$$                      Font: Cantarell 11
      `Y$$.                    Mail: Thunderbird
        `$$b.                  Browser: Mozilla
          `Y$$b.               TTY: nmap ssh mc dmesg htop nc mutt rsync
             `"Y$b._                iptraf dsniff gpm byobu rcconf irssi
                 `""""              elinks make msfconsole
iptables tail