I posted very short Forum Discussion items for student project submissions (embedded as links to .ppt files which are stored in a Folder) for the purpose of students providing feedback on other students' work by means of a 'Reply' to each individual Forum Discussion. This has always worked in the past.
This time, after posting all the individual discussion items (for each submission), the course participants do not see the 'Reply' function in the individual discussions.
Very strange. Any ideas, what might be wrong?