There is one website I cannot get onto from several computers if I try using Firefox / Ie or Chrome. All computers can access the site using AOL browser (and we connect to the internet through a router and AOL is our ISP). I can also access it via iphone and I know that there is no problem with the actual site. Actually we cannot access any site that we know of on that particular server - it is as though it has blocked access from our ip address but only when Firefox/Moxzilla or Chrome. But none of our computers have problems elsewhere on the internet it seems to be just that one (server/website). This started suddenly this a few days ago and is driving me mad. I have checked that Norton Firewall settings and all are allowed to access the internet and the ip address or sites aren't blocked. Our settings on AOL/IE/Firefox for accessing the internet all say auto-detect proxy setting. I have asked the owner of the server to check at their end that we aren't on a blocked list - we aren't. I am not sure what to do next - any ideas welcome.