the stupid thing just popped up on me again!

I was looking on a shopping site and allowed scripts on the page to see the next page results and all of a sudden the Antivirus 2009 warning popped up.

Darn thing!
anyway I did the ctrl/alt/del and closed the browser process in the Task Manager like last time.
That seems to be the best way to close it down, you don't click on the pop up anywhere that way.