Shoutbox

I keep getting the infamous "Never give out your password or credit card number in an instant message conversation." and it doesn't go away. After a little searching I found out that the message should go away after opening 5 conversation windows. And whoah, that actually is the case. The only problem is that everytime I sign in again, the counter will reset, so editing the registry is useless. This shouldn't happen. What is causing this and how can I stop the reset?