I reinstalled minibb to integrate with wordpress, and I think everything is working properly regarding logging in and logging out. Except for one thing, which is the "Sign in/Post message" button on a posting page.
When I leave the post message box empty and login using the button, it works fine. But When I write a message, and submit my login information at the same time, it gives me the warning of "You are not allowed to perform this action."
Can you tell me what can possibly be wrong? I don't think it's a cookie issue 'cause I already used Firefox cookie option to check. By the way, if you want to look at the forum and try it for yourself,