Internet Explorer Pop-up blocker, or the actual pop-ups?
I had my IE pop-up blocker turned on until now. Every time I would post a comment, or type something that was about to be posted on a website, IE would flash the bar at the top of the screen asking if I want to temporarily allow pop-ups. I would be forced to click on that bar, and everything I typed up to that point, or the file I spent the last five minutes fishing around for on my hard-drive disappears, and I must do it all over again after I allow pop-ups.
So I just turned off my pop-up blocker. Now I don't have to do everything twice. I would not be surprised if that was the whole intent. It's a demonstration by Microsoft of contempt for the every-day user.