When I debug a very simple website in Visual Studio 2010 Ultimate edition I get the error "Internet Explorer cannot display the webpage". This only happens if I am in debug mode for more than about 10 seconds. If I press F5 promptly on all the breakpoints I don't get the error, but if I hang around a wee bit the error appears when control is passed back to Internet Explorer. I am using IE9 on Windows 7. Any ideas?