Hello…
The language archives are raised the Web site.
I believe that the problem can be by the cookies,
With firefox in Herramientas> Information of pagina> Seguridad> To see cookies, appears to me cookies names laradiobbs name cookies lang.
If I erase changes to me of language, but on the following day it returns to appear and it stops working. With IE7 not with himself that work, and in LocalHost everything goes well.
Reason why the conclusion is some problem of navigators Web.
It can be a problem of cookies?