I just noticed that when I updated the instructions to assignment 2, I had used an older copy that didn't have the submission section on the last page completed.
I won't be able to fix the problem until I get back to my desk on Monday - in the meantime, just be aware that it should state 2 things: that the assignment is due this Wednesday (the 24th) at 4PM, and that you should submit properly via My Assignments.