A new feature added 1/12/07:
Adds PM info (similar to the old format) to the header area. Ex: "You have 5 messages, 3 are new". This will be added above the "Show unread posts since last visit" link. In the example above, "5 messages" is a clickable link to your PMs.
Cool! My daughter called me up the other day to tell me she received an email that she had a PM, but she had no idea how to retrieve it.