Sometimes, resetting your computer's modem will fix the Cannot Display Web Page problem in IE8. To do so, turn the computer off. Unplug the power cord from the back of the modem (and the router as well, if you have one) and leave it unplugged for about 30 seconds. Turn the computer back on. Once it is fully booted up, plug the modem and router back in and wait for all of the appropriate lights to be illuminated on the modem and router. Finally, restart the computer one more time. Open Internet Explorer and see if the web page can now be displayed.