Did you have messenger pinned to taskbar when you updated? If yes simply unpin the icon, start Messenger from the program list and pin that one instead (if you haven't done so already and do want mesenger pinned there).
What I expect to have happened here is that it's a leftover icon from previous Messenger version which it couldn't delete.
This post was edited on 10-23-2010 at 12:48 PM by Sunshine.
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