Recently the Incoming Links module on the dashboard has started asking me to log in. So, too, the WordPress Development Blog module. None of the other modules exhibit this behaviour.
I am using Google Chrome and have noticed that the same problem does not occur in Firefox. It also does not occur in Google Chrome when visiting my installation in Incognito mode. I assume, therefore, this is a problem with cookies but, after clearing them, the error remains.
Is anyone else having this problem?