[Samba] Samba Invalid user not working

[updatemyself .]

actully my configuration is like this only..
to make u understand.. i written the name..
look at the following..

[vol3]
        path = /vol08_800
        invalid users = 16778634, 16778618
        valid users = @16777729
        read only = No
        create mask = 0644
        security mask = 0755
        directory mask = 0775
        inherit permissions = Yes
        inherit acls = Yes
        inherit owner = Yes
        vfs objects = recycle
        recycle:versions = yes
        recycle:touch = yes
        recycle:keeptree = yes
        recycle:exclude = *.tmp,*.temp
        recycle:repository = /home/.Trash/%U-%m-%d


even then its not working...........
i mean only the case of invalid users...
i use only UID and GID insted of name...
hope its will be ok

regards
jerrynikky