It can be infuriating as the Computer appears to have a mind of its own sometimes. I had similar problems when I set things up after a re-install. To resolve the issue I disabled Windows Messenger and subsequently removed it, I then went back to the download site and re-installed MSN. I suggest you follow the instructions to disable Windows Messenger and see how it goes before removing it. As Owen said its confusing with two, or was it three, different versions of the same programme.
Joe.
Genius is one percent inspiration, and ninety-nine percent perspiration. Thomas Alva Edison