Whenever I try to reply to a thread I initiated in these forums, I get a message to the effect of "A post has been made from your IP in the last 90 seconds. Please wait and submit again.". I get this message even if it's been days since my last post. I even tried to post from a machine on another network with a different IP, but still got the same message. However I am able to create new threads ok (like this one).
Thanks for reporting, I'm going to see how to fix that problem.