Shoutbox

I have a ongoing irritating problem with Windows Live Messenger 2009.
I have the latest build with messenger plus! installed as well.

Recently, when I open WLM from the taskbar then I press the close button 'x' to minimize it to the taskbar again, sometimes when I do this, a random popup from questionmarket.com will be automatically opened in firefox in a new tab. (even when im not running firefox) Strangely enough, the content is blank except for the title in the page. I have tried blocking cookies from that URL but the problem still persists. I am also unable to reproduce this problem at all as the chance of this happening is totally random.

Here is a screenshot to further illustrate what I mean :





Any ideas to get rid of this irritating annoyance?
Help will be greatly appreciated thanks.