Yesterday Microsoft came out with a patch to fix a long term problem with Internet Explorer. Though the same day Firefox 3.6 came out . So maybe that was also a hint for IE users to maybe switch to Firefox. Im not saying you should switch to Firefox but Im saying you should use almost any other browser Firefox, Chrome, or anything that is not IE. Though no matter what if you are running windows and even if you use IE once and wile you should get this update.