BizTalk 2009 and SQL 2008 - Simple recovery mode breaks agent

I learned something today about SQL 2008 and BizTalk's SQL agent jobs. You must leave all BizTalk databases recovery model to "Full". I encounted a database set with the recovery model that was changed to "Simple" and it caused the agent's jobs to fail.

The reason for this is that "TRUNCATE_ONLY" has been deprecated for SQL Server 2008. This flag forces you to keep the recovery model as full. When I changed it back everything began funtioning normally again.