Windows security alert pop-up

<p>Starting this morning, I have been getting a Windows Security Alert pop-up on every forum page I switch to: "The current webpage is trying to open a site in your trusted sites list".</p>

<p>I have not changed anything in my IE8 security settings. Any clues as to what's happening?</p>

<p>With Internet Explorer, who knows? And the trouble is that no one seems to care, even at Bill's house.<br /> You may want to look at, at least, Mozilla's Firefox (<a href="http://www.mozilla.com/en-US/products/download.html">link</a> ).</p>

<p>My Linux friend considers that using IE is like laying a open, direct connection into your house from the world's largest sewer.</p>

<p>The url of the web page trying to get into my trusted sites list is <a href="http://tags.bluekai.com">http://tags.bluekai.com</a>. Bluekai is some kind of ad targeting operation which is apparently lurking in the shadows of photo.net. I don't think it's an IE8 problem.</p>