Outlook has a nice envelope icon that displays on top of the taskbar icon when I have new mail. Sometimes this icon comes up when I get a new message, but then doesn't go away when the message is marked as read.
The only ways I know of to get rid of it is to close and reopen Outlook, or get a new email. Although sometimes if I'm unlucky the same thing will happen with the new email.
Here are two screenshots of what I'm talking about. You can clearly see the new mail icon along with an empty inbox.
Just to be clear, there really isn't any unread email (none in other folds, junk etc.).
How can I get Outlook to actually recognize when I have no new mail?