Hi
I found an error between Kunena 1.6.5 and Community Builder 1.7 on Joomla 1.5.23.
When I install the Kunnena 1.6.5 and then the Community Builder 1.7, after syncing user through the CB login and everything else, the login and logout works well.
But I can not logout through Forum of Kunena, something changed the installation of CB 1.7 that block logout through the forum.

I've tried several times and does not work.

Without the Community Builder 1.7, forum Kunena 1.6.5 works well. You can logout without problems.

The Community Builder 1.7 does not allow logout. Removing the CB program, Kunena works well.