In an earlier post, I mentioned that the notifier had broken. Since Monday, I have been sending emails back and forth to Google in an effort to (1) make them aware there was a problem and (2) find a solution. Until this morning I was just getting the standard responses, "clear your browser's cookies and cache, log out of your account, close all browser Windows."
In the end I used the power of Technorati search to locate all the other bloggers talking about this issue and a solution was found!