Why isn't my pop up blocker working?

Answer 1

It's usually due to spyware/adware. Most times the pop ups are generated from a program within your own computer. Try running all your anti-virus scans.

Answer 2

Your PC is infected with adware and a pop up blocker wont help with a PC that is alreay infected. Use these scans to remove adware.

Both are free.

Spybot - Search & Destroy detects and removes spyware, a relatively new kind of threat not yet covered by common anti-virus applications. Spyware silently tracks your surfing behaviour to create a marketing profile for you that is transmitted without your knowledge to the compilers and sold to advertising companies. If you see new toolbars in your Internet Explorer that you haven't intentionally installed, if your browser crashes inexplicably, or if your home page has been "hijacked" (or changed without your knowledge), your computer is most probably infected with spyware. Even if you don't see the symptoms, your computer may be infected, because more and more spyware is emerging. Spybot-S&D is free.
http://www.spybot.info/

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