Whenever I enter my ID and password, I get an error message ("Connection Error Digital Editions could not connect to the activation server. Please make sure you are connected to the internet."). There is no specific error code, and I have tried resetting Internet Explorer, changing firewall settings, turning off the firewall, using a different WiFi, and reinstalling ADE. My computer is a laptop running Vista and by this point I'm out of ideas on how to fix this. I hope someone can help me solve this problem, since I need ADE to access my class textbook. Thanks.