Facebook Connect Password

Hi,

Second question I've come across, thought I better start a new thread. I've been testing my Facebook Connect using the Ultimate Facebook plugin. It registers fine, maps the names and email etc and creates a user for the person. Once I logout though, I can't log back in. I try to use my FB password but that doesn't work.

Does anyone know how the password is set and how it can be displayed to the user?

Thanks