when I choose the Agile -> Task Board I notice that only 1 project is set and I cannot choose other projects anymore!!! Howver I did: I have 12 projects and ALL of them are configured to Agile.
More info: I noticed that all my projects somehow erased(!!??) from the Agile enabled projects list. I added one of my project to Agile and I returned to the Agile -> Task Board menu: and I only see one project and still can not see the new added project.