For an unknown reason, I cannot sign into my email or any other site that requires a login, but I can still surf the web fine. When I try to sign in on IE, it says this page cannot be displayed. On Mozilla Firefox, it says that the "connection was refused". I have checked my internet settings, and I have java, javascript, and cookies enabled. I don't know what's wrong with it, but it doesn't seem to want to accept any secure connections. Help please?