The Chat / Collaboration tools in Blackboard are not working properly. We are working with advanced support with Blackboard Support in D.C. We will post another announcement as soon as the tools are working correctly. We apologize for the inconvenience and appreciate your patience.
Update: 3/23/2012: Chat Tool still not working, but this issue is a priority and we are still working with Bb Support in D.C. on the problem. If you would like to consider using Centra as a secondary plan, please look here.