EMS Free Surfer mk II is a good pop up add stopper. It's a free download. I can't remember where I got it but I just went to google.com and did a search for it. It's safe because I learned about it on tech tv. www.techtv.com You might even be able to find it there. Spyware can even find your name, credit cards used online, etc. It's bad and should be illegal but I don't think it is.