PrintScreenMe needs access to the internet so that it can send images to the social networking sites via our servers. The registration sets up an account on our servers. The message "Cannot contact the server" means that PrintScreenMe has probably been blocked by a firewall from talking to the internet. Please check your personal firewall and network firewall to make sure that PrintScreenMe is allowed to talked to the internet. It needs to talks on port 80 (http) and port 443 (https).