Having trouble with a webpage forum

[smackie]

Hello, hopefully I'm posting this in the right place, I recently signed up for a forum online, and have a couple of private messages that I have to respond to, however, even though I exceed the post count required to post a PM response, the forum still will not let me. I know I am logged in with my user/pass, so it's not that I am forgetting to be logged in.

Another weird thing is that the forum doesn't remember my user/pass, even if I tell it to remember it, I've never seen that happen before. I sent the admins an email a few days ago asking about the problem, but never got a response. So I guess my question is, is there something not enabled/disabled in my browser that I'm missing, or is it a problem with the forum itself? I've tried using IE and Firefox, but get the same results with both. If it matters, the forum I'm using is a phpbb forum, I use several of those and yet this particular one is the only one that gives me problems.

Any advice is appreciated, thanks.