I would like one of my students to be able to return to a concluded course they recently completed to be able to read comments that were left for them under one of their discussion activities. However, whenever they try to access the course (which concluded last week) they see the "Access Denied" message. I understand that there is a setting to "Restrict students from viewing course after course end date" but I have left it unchecked. Is there something else I have to do to give my students read-only access to a recently concluded course?