Hi All. Just updated 4.21c to 4.50d and installed the forums module.
Am able to create forums, but anytime I/we go to create a thread w/in a forum, we get a blank page. No error, or anything.
I've enabled the perms via roles for forums and threads, but I get the same behavior.
Anybody got this working?

Linux FC5, Sugar 4.50d, apache httpd-2.2.2-1.2, php-5.1.4-1, mysql-5.0.22-1.FC5.1