I have been using a particular website for many years but yesterday for the first time I have got a warning saying there is a problem with the security certificate and should not enter the site The message says " This site is not secure This might mean that someone’s trying to trick you or steal any information that you send to the server. You should close this site immediately". This also happens on all my pcs including my RT tablet. Is there any reason why this should suddenly appear? - the website is www.agendaweb.org and helps people learning English. I normally ask "freepchelp.co.uk" but for some reason I now cannot access that site - it seem to have vanished at the same time yet Starbuck was one of the mods who was most helpful and he also appears on this site. Are the two things related?!