You don't have to wait until class starts to install the Blackboard Collaborate Launcher. Installing the Launcher is a one-time process that can be done at any time. It's recommended that you join the session at least 15 minutes before it is scheduled to begin to make sure that any technical issues can be resolved before class starts.
Follow the link inside your course, or provided via email or other site.
On the Session Login page, enter your name and email address; then click Submit.
If you already have the Blackboard Collaborate Launcher installed on your computer, skip to step 7. Otherwise, click download the Blackboard Collaborate Launcher on the Room Details page.
In the window that pops up, click Download Launcher. Two files should begin downloading: a .collab file and .msi file.
Open the file called BlackboardCollaborateLauncher-Win.msi.
You should now see the Blackboard Collaborate Launcher Setup wizard. Click Next, then Install. When the installation is complete, click Finish. Skip to step 8.
On the Room Details screen, click Join Room. A .collab file will begin downloading.
Open the .collab file that you downloaded. The Verifying Application window should pop up.