There are a few reasons the left hand navigation course menu might be missing:
1. On the myBlackboard page, click on the name or title of the course under My Courses module. Do not click on an announcement under a course name or on the myannouncements module. Clicking on an announcement will only show you announcements, not the whole course.
2. In the course itself, check to make sure you haven’t accidentally hidden the course menu. If you don't see a menu bar on the left, it might have been hidden.
Look on the left side of the screen about a third of the way down the page. Roll your mouse over that area, and hover. If you see a little arrow type button (grey color) appear, click it and the menu bar should come back. Clicking again will hide it. The red icon is for ReadSpeaker.
3.Towards the upper left corner in a block with the course name, you may see another small grey triangle icon to the left of the course name, which collapses the menu bar. Clicking that will expand, or collapse, the menu.
Let us know if you have questions.