A customer brings you her laptop computer and tells you that itwill not connect to any Wi-Fi networks. She tells you that it wasworking yesterday, and that she was on the web updating herFacebook page and then downloading a coupon-shopping program. Nowshe cannot connect to the Internet.
A friend asks you to look at his laptop computer. He tells youthat any time the screen is moved, the image on the screen flickersand then goes blank. He also says that when he is on the World WideWeb, random webpages open without his authorization. When he triesto close them, more of these pages open up.
