Enrollment - Why aren't all my courses listed in 'My Courses'

Why aren't all my courses listed in "My Courses"?

Only the courses where a professor is actually planning to use blackboard are listed.  We create all courses, but the professor has to mark the course as "available" for the students to see it.  In a typical term perhaps 2000 courses are eventually marked as available -- about 3/4 of all course enrollments.

 Sometimes a professor forgets to make the site available, and sometimes a professor combines multiple classes into a single merged site, so blackboard coursesites aren't necessarily quite the same thing as UO courses. 

tags: course, class, classes, list, menu, my uo, course page, home page