If you’re unable to view any of topics inside Course Content, then you may be experiencing a recently-discovered bug in the new version of D2L that results from using Internet Explorer 8 to access the system. Check out the video below to see how to correct the problem. 

Please note that the steps below do not work if you’re using IE8. I would suggest using FireFox, the best browser out there

You can also visit view this video on Screencast.com and download an accompanying PDF.