I would also try the following:1) Make sure no rogue entries have been added to your hosts file C:\Windows\System32\drivers\etc2) Check your DNS settings have not been changed:"Go to Control Panel, Network and Dial-Up connections.
Local Area Connection, Properties
Double click Internet Protocol (TCP/IP)
Tick Obtain DNS address automatically" 3) Set IE back to the default settingsClick me !
Good luck !