I am running Windows 7 and today when I was reading Ag Talk suddenly I started having words highlighted in messages in an orange color.  If I clicked on the words there would be an advertisement of some kind.  I have never had this happen before.  Is there a setting that I accidentally changed to allow this.  I have set pop up blocker to high and it doesn't change this.  I am running Microsoft Essential Security if I recall the name correctly.  Anybody have some help?  Thanks!