Messages: How Can I Tell What The Unread Badge Is For?
Often recently I end up with a "1" in the unread badge for Messages (ie, stuck to the dock icon and the command-tab icon), and cannot get it to go away or figure out what it is for. None of the visible conversations have the "unread" dot next to them, and I can't just open up one-by-one all the closed conversations from my buddy list to randomly guess if they are the source of some notification.
Is this just a weird UI limitation at the moment, or is there a way to figure out what it's talking about? Right now I have to quit Messages to "clear" this distracting (and indiscernable) notification?
I can't take a screenshot of the command-tab feature, but here's what I mean as it appears in the dock.
Edited: Clarified product referenced in Title
24" iMac, Mac OS X (10.5.7)