Glad you mentioned it, Sharon. I had reply be email to many who reported this problem:

Problem: PM is full, they deleted messages from the inbox, and it still says full.

Solution: Go to your PM page, and look for "Jump to folder" scroll bar. Visit each folder, and delete any unwanted messages.

Fern, the numbers indicate that you have 0 messages in the inbox, and 9 messages in other folders.

If this doesn't solve the problem, please let me know all the details of what you did and what it says

Wa'il