QUESTION

All of a sudden, things I read on the web, including now comments to this blog, have certain seemingly random words underlined twice in color, and when I run my curser over them, I get a popup I don't want. Also, I seem to be afflicted now with many more unwanted popups in the various news and comment blogs I visit, even though I have turned my pop-up blocker on in Internet Explorer. Does anyone know what is going on?