I installed Microsoft's "Cumulative Security Update for Internet Explorer 7 for Windows Vista" The official patch number is: KB963027 After installing that update Internet Explorer 7 will NOT work if Eset Smart Security firewall is turned on. Even though I have the firewall setup in "Interactive Mode", I haven't been asked to approve any connection. After the KB963027 patch it is simply impossible to navigate to ANY web page what-so-ever if the Eset Smart Security Firewall it turned on. If I turn off the Eset firewall, IE 7 works perfectly. If anybody has been able to solve the 'mistery' of what rule/rules we need to add to Eset's firewall in order to IE 7 to work again, I would appreciate it if you could share them with us.