Old posts

After reading a original post is there a setting I can adjust to let me know tomorrow that I have read it?

There is a small icon beside each post, right in front of the board name of the poster. The icon looks like a sheet of paper. It is white for posts that you have read and red for those that you have not read.

You can also identify threads as read or unread in the same way. The difference is that the thread icons are made up of lines and they are black for threads that you have read and the lines are red for threads with posts that you have not yet read.