How Do I Find & Turn Off Pop-Up Blocker?

Hi! I need to turn my pop up blocker off so that I can use the ebay "save this search" feature. My problem is I can't find which program is doing such a magnificiant job blocking my pop ups.

I doesn't seem to be in either the Internet Explorer tool bar under tool, Pop-up Blocker, my choice to to pick "Turn on Pop-Up Blocker" or well, I can't find where the pop-up blocker would be on Yahoo.

May be it is in one of the other programs like AVG Free or ?? Any ideas?

Thank you for your help.

Best regards,

Ladycarr