I would like to know how to allow oxwall to accept user login in different languages, you can sign up ok in English (latin) letter/characters without a problems (for example Russian's use Cyrillic letters like шчядйхфхъз).  when users type in using there language for registration, the system say it invalid characters.   Basically what do I need to do to get this working.  (the same is with Greek and Arabic).  Thanks