Question: How can I tell what posts I have read and not read (are they marked some way?
Answer: A forum name that has unread posts in it will have a green exclamation point to the left of the forum’s name. When you open the forum you will see a green exclamation point to the left of any topics that have unread posts in them.
After you read all the unread posts under a topic, the green exclamation point will disappear from beside the topic name. Likewise, the green exclaimation point will disappear from beside the forum name when all unread posts in the forum have been read.