I've updated to the latest version (9.0.2.0) and have no trouble with any regular hulu episodes/movies or regular hulu plus episodes/movies.
When I try to download a movie from the Criterion collection (
http://www.hulu.com/criterion/) this is what I see, despite the fact I am logged in and an active Hulu Plus subscriber
When I hit log in and enter my details it says "Your account is not Hulu Plus account." (Yes it is not correct grammar on their end).
Often I can then browse to a different web page, then hit the back button and the video will start playing correctly, but no stream URLs will appear.