When was the last time you updated it or did you download this within the past week? There's suppose to be a newer version that added support to push out the update.
If you haven't updated it or if you downloaded it more than a week ago, I'd try downloading the new version.
Supposedly all you have to do is plug it in, and it'll notify you of a new update. Haven't heard of any other Mac users having an issue. Correct me if I'm wrong.