I had this problem too a lot, and it only happened when I was in a long long conversation with someone and send/recieved a bunch of files. I always thought it was only me having this problem but it seems like I'm wrong...
I didn't tried it without Plus! yet, so I can't confirm it's a Messenger or a Plus! bug.
This post was edited on 03-26-2006 at 04:35 PM by Matti.
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