John Schmahl put together some statistics on student grades for us:
Student Retention and Success Summary, 200830 - Spring 2008
I'm not sure how legible that graphic is, but essentially we give more A's than we do B's, more B's than C's, more C's than D's, and then there are a whole raft of F's. I suspect that a significant percentage of those F's are students who simply stop attending classes, but I don't actually have any proof of that yet.
Those failing students are the students I'd like to catch and help to complete the class successfully. Student services plans on beginning to track student access to classes eventually so they can send students reminder emails, but any other ideas are welcome.