The Message Center in Home displays the count of Messages and Forum posts for all of the sites in which you are enrolled. New messages are indicated by a number and envelope icon. If there are no new messages or posts, the word "none" will be displayed.
You may click on the Options button to customize the list of sites displayed in the Message Center area.
Click in the Don't Show box to place a check mark next to any sites that you prefer not to see in the Message Center list and then click Update.
Note: If you have already hidden sites in Preferences, they will not show up in this list.