I've seen references to this but none address my particular issue (that I can find). This occurs in every browser I use (Safari - Firefox) so it doesn't appear to be a MAC issue only. I have a site that I occasionally go to. When I try to log into the site I get a message that the browser cannot find the server. I know it's there. Until recently I have been able to delete parts of the address line and get to it. I can access it on another computer but not this one. I've deleted history and cookies. I've deleted the bookmark to that site and ran Safari for several days off and on. I just went back in to access this site and still get the same message. I think firewall options aren't restricting me. What do I do?