Folks – if you are a Project Server 2007 shop and your Data Analysis cube stops building – the following article will help you.  This may occur if you change your SharePoint server farm (servers or names).  Let us know if you have any additional questions.

http://blogs.msdn.com/b/brismith/archive/2008/12/09/project-server-2007-has-your-cube-build-stopped-working-to-the-schedule.aspx

Enjoy.