Head to it's Tools, Internet Options and click the restore defaults there.
Try OTHER browsers.
All of a sudden I can only access my two banking sites and Paypal. No other sites from my favorites list will load up - not even eBay. I removed my anti virus program to no avail. Also there are no email issues. I am now assuming that the connection itself is not an issue and, since I have no anti-virus installed, something in Windows is blocking the sites. I have gone through the Internet Options menu and everything has been set to default.
I have no idea what to do next.