How do I get my Inbox (and/or Drafts) to indicate new messages are present?

1. Make sure there is at least one message in your Trash folder (if you don't have any messages in your trash, send a message to yourself and then delete that message so it moves it to the Trash folder) 
2. Right-click on the Trash folder
3. Click ‘Empty Trash’ to empty the folder
4. The new messages will be displayed