recycle not working in linux when mapped

[fabioxxxx]

Hi i am using samba in my company .i am using the recycle option.

It's working well in windows machines with mapped drives, or direct access \\ip_server\dir
in linux when you do direct access with the file manager smb:// ip_server/dir it works ok.

but when the samba share is mapped in fstab deleted files are not being moved to the the samba trash folder.

server centos5 x86 samba-3.0.33-3.39.el5_8

client ubuntu 12.04 x64 samba 2:3.6.3-2ubuntu2.6
fatab:
 //192.168.x.x/x /media/samba cifs userid=xxx,passwd=xxx,_netdev,noatime,umask=002,gid=1000,uid=1000,file_mode=0777,dir_mode=0777 0 0