'Suspicious IP' Messages.
Update: This should now be resolved.
If you're receiving a note on trying to use the forums saying that your IP address has been marked as 'suspicious', it's probably due to a false-positive hit we've been seeing with the anti-spam system we use. Our web developer is looking in to it and we should have it solved soon. In the meantime, if you do see the message just click the 'click here' link and you can carry on to the forum page.
Sorry for any inconvenience!