The E_DEPRECATED looks like I'll need to put in a version check before using that. It's basically so people running the latest version of PHP won't have problems. What you can do is modify the ubbthreads.php file in your main directory. Line 46 has this:

PHP Code

error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED);

Change that, to this:

PHP Code

error_reporting(E_ALL & ~E_NOTICE);

On the logout/login issue. It could be related, as it's probably treating that as header info, and not modifying the cookies properly. So, go ahead and make that change and see if it fixes it.