To log in, click the hyperlink that says “Log In / Register” in the upper left corner. Once logged in, that same hyperlink will take you to your account page.
To access app Settings, including language, auto-start settings, beta opt-in, click “Settings” in the right-hand side navigation.
To see your version of GG, go to Settings > About. To make sure you’re on the most recent version, click “Check for Updates”.