[Samba] Wrong menu language on Windows 7 clients after update to Samba4 beta8

[X-Dimension at gmx.net]

After updating from Samba4 alpha 17 to beta8 most Windows start menu entries on our Windows 7 clients are in english now, instead of german.
Also the desktop.ini files are not hidden anymore like it was before.
What goes wrong here?
Do i need to set a new parameter in smb.conf or mount the filesystem with some attributes? 

Thanks for help