We are using Blackboard version 6 Basic edition. The collaboration element doesn't work, when you try to join a chat room, the page cannot be displayed error is shown. We are positive it is not a firewall error, however the join button url is pointing to the local host name rather than the domain name. Has anyone else experienced this problem and does anyone have a solution. many thanks Alison Osborne Lewisham College [log in to unmask]