unfortunately a popup blocker only attacks the symptoms of the problem... not the problem it's self. i'm going to post something i posted on another web board... i was having a bad day when i did so so please don't be offended by it.
i go to clients locations every day and the first thing they ask me is "how do you get rid of these pop-ups? i have a pop-up blocker..."
first off... a pop-up blocker only stops pop-ups, it doesn't eliminate them. more often than not you've got a program running on your computer that creates or introduces pop-ups and you don't even know it.
right now if you go into your add/remove programs list and look through it you may find a few programs that you don't recognize. things like "search assistant", "weather bug", "wild tangent", "search bar", "yahoo compainion" or "windows internet tools" things that are named blatantly obvious or which you don't recognize. here's a clue kiddies... those programs are creating the pop-ups and no matter what pop-up blocker you have you're going to continue getting them. go through and remove all those programs from your add/remove program list.
once you've done that go out to www.lavasoftusa.com
and download adaware 6.0 also go to download.com and grab spy-bot search and destroy. install both programs and then run them one at a time. be sure to update them before you run them. on adaware make sure you have all the deep scanning features turned on and that you are scanning all the harddrives in your system.
when the scans are complete reboot your confuser and surf the internet with the pop-up blocker off... you'll be amazed that you don't get any more pop-ups... why? because you eliminated the source of the pop-ups... you didn't band-aid over the problem.
thus endeth the lesson... thank you.
another program to get, which i had not listed is spyware blaster. it stops activex programs from ever being allowed to install on your computer. microsoft has fixed this problem with xp sp2 however... by default IE6 will block active x controls and you have to want to install them to install them. becareful out there and mind what you say yes to...