>Today my new Messages indicator on the toolbar at the top of the screen is not indicating new messages (just staying at 0). If I click on the refresh icon, I see new messages.
>
>Is that happening to anyone else?

It just means that, for some kind of reason, the auto refresh mechanism has been interrupted. If it was showing 0, that would mean it had been interrupted since the last time it was refreshed or during the time there was still no new message.