Blackboard - Notification Settings
You can change your notification settings via the "Navigation Menu" located in the top-right corner of the screen after logging into Blackboard.
Click the "Updates" icon (it looks like an alarm clock), select the desired course, then click the "Gear" icon located on the right side of the screen and select/deselect all notifications.
This should get rid of any announcements that you may be receiving from that course, if you require any further assistance please contact the Delphi Center at 852-8833.