Fedora 16 XFCE spin language problem

[SilvioTO]

On January I installed Fedora 16 xfce spin on my desktop (x86_64) and 
laptop (i686) with respective dvd's and in both pc I set the system 
language to italian.
All went ok, except for Thunar: at the first launch it is in italian; if 
closed and reopened it change language and remain in english for the 
rest of session. The folders shortcuts "Documents, Download", etc, is 
always in english.

I opened a forum post too: 
http://fedoraforum.org/forum/showthread.php?t=274735
and a bug: https://bugzilla.redhat.com/show_bug.cgi?id=771880

Thanks for your help.