Continually receive message "Cannot display this page". Clicking on IE opens the page, but once you enter a URL, just displays the same message. Other browsers work OK, Bing, Firefox, and Chrome. Have run virus checkers, nothing turns up. Some programs required IE to download, so you can't use another browser to download the application. PC is connected via Ethernet cable to router. If you use the Skype App, get a message "cannot connect to Internet", yet if I go to Skyp website, can connect OK.