No -- because it doesn't sort that way. However you can go to "Forums" and over on the right it will show "Posts you have not read" and you can choose ... say, just to see the last day's posts, or the posts since you last logged in.
The advantage of it is that this way you *can* go back to a post you missed a couple of days ago if you want, or you can just look at what is absolutely 'new' to you.
"The best and most beautiful things in the world cannot be seen or even touched. They must be felt with the heart."
Helen Keller
