With the last version of Jitsi (2.0), I can't create new account when the language is French with all kind of network.
There isn't display to fill in the fields.
I had to change the language to English, I could create the new account and change again in French. That is ok !
I didn't test with other language but I think it's a bug.
Thanks for your hard work ;))
* Anglais - d�tect�