>Michel, say, somebody clicks on the mail box icon, and is taken to the screen showing all the replies to his messages. Now say it's a busy day, and there's a lot a traffic on UT, such that while the user is on this screen a number of newer replies to his other messages comes in.
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>Now what would happen if the user clicks on the 'Clear All Messages' link? Would it remove only those replies that are being shown, or might it remove all replies including those newly come in that the user might not yet be aware of?

This has been fixed. A marker is put in memory when reading the replies so a clear all will not affect new upcoming replies when doing the reading.