Changing the Individual/Course Setting for a Blog

Issue/Question

I am unable to modify the setting for whether a Blog is Individual to All Students or Course.

Cause

Students have posted to the blog prior to the instructor's attempt to make this change.

Resolution

Once students have posted to a blog, the instructor can no longer change the blog from Individual to All Students to Course, or vice versa.  The setting can be changed until such time as a student posts an entry.