Finding, Reading and Moderating Messages

Once a discussion begins, new messages can come in very quickly. To help you keep on top of things, new messages are identified in a number of places. On your course homepage, the Updates widget lists the total number of unread messages for all discussion topics in your course. On the main Discussions page, the number of unread messages appears beneath each topic. To see only topics with new messages, select Topics with Unread from the Display drop-down list. 

If you have the Discussions List pane visible you can see topics with unread messages in bold.