| What are Pop-ups? Unwanted pop-ups are screens that come up when you're surfing the
        internet.  You go to one page and an ad opens up on another page.  They are
        often the products of spyware. 
        Because they're so common and irritating, pop-up blockers
        are popular.  This seems like a great idea, but these programs often block useful
        pop-ups like Instruct-online's self-studies and tests. 
        When you have pop-up blocking software installed, you will
        not be able to access your self-studies and tests. 
        How do you turn them off?  First you have to find
        them.  Look at the links to the left for instructions on how to turn off some of the
        most common ones. 
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