While typing the earlier message, I connected to MS Update... and guess WHAT: :wtf::wtf::wtf::wtf::wtf::wtf::wtf::wtf::wtf::wtf: Critical Update for SQL Server 2005 Service Pack 2 (KB 933508) Taille du téléchargement : 18.2 Mo , 27 minutes The initial release of SQL Server 2005 SP2 contained an issue that caused maintenance plan cleanup tasks to remove data before the specified cleanup interval. Install this update to resolve existing cleanup task intervals to the previous values, and to avoid this issue in new cleanup tasks. :wtf::wtf::wtf::wtf::wtf::wtf::wtf::wtf::wtf::wtf: :: YOU make history ::