This seems to occur most often when I open an email attachment or I receive a new email notification from MSN Messenger.
I have MSN version 9.6
I use Trend Micro as my Firewall.
Also, this happens on my Desktop AND my Laptop, both using XP.
I've contacted MSN Support over and over (this has been ongoing for 2-3 years), and no one can solve it. The last time I contacted them, they told me it must be an issue with my operating system.
Does anyone have a clue what is causing this?