CMS Made Simple Forums

Hi all
Using FrontEndUsers 1.2.0 and CMSMS 1.1.

I can´t use the login form when already logged in (I logged in, and then moved back to the login form without logging out).

I don´t want this functionality as I don´t trust my users will use the logout function, and also because many will use the same username and password.

How can I turn this functionality off?

Take a look at:
Frontend User Management > Preferences > Allow users to login more than once

Wow, I can´t belive it was so simple.
Thanx