Community Builder integration

Hello,

I try to install Community Builder on a clean multilingual Joomla 3.3 installation, with easyblog and easydiscuss.
easyblog and easy discuss use correctly the CB profile avatar), but when I click on a Register or Login bouton, it use the Joomla user's component.

I've read several time the README-NEW-INSTALL.txt file from community builder...

Thanks for your help.