Right now there is one instance in Translations of "NoResultsID". The default message now is "We're so sorry! We could not locate this course. If you believe you should have access to this course, please contact your system administrator."
This message is what users get if they are not logged in and click a link to a course AND they get it if they are logged in and click a link to a course they do not have access to. These are two very different things.
We should have a message for "Log in to see this course" in front of the log in and a separate message behind the log in of "no access to this course".