When I open my mail program (Opera Mail) I get a message "The server's certificate is incomplete and the signers are not registered". The certificate errors listed are: "The certificate for pop3s.bluewin.ch [my incoming POP3 server] is signed by the unknown certificate authority "Avast Web/Mail Shield Root" It is not possible to verify that this is a valid certificate" I have to Approve or Reject this message before I can go further. I get a similar message concerning my outgoing smtp server.
What does all this mean and how can I stop getting this message - thanks.
