Disabling Pop up blockers: Pop-up blockers will cause download to not unlock. Internet explorer Click on tools, internet options, privacy tab and make sure the pop-up blocker box is NOT checked. Firefox Click tools, option, content tab and make sure the first box is NOT checked. If you have the Yahoo, Google, or Any Toolbar installed, they both also have pop-up blockers, and you need to make sure you have those Turned Off as well.