This source seems to indicate that it was a software error that guided the stage...

		robszumski on Aug 29, 2014 \| parent \| context \| favorite \| on: Galileo satellites experience orbital injection an... This source seems to indicate that it was a software error that guided the stage into the wrong orbit. http://en.ria.ru/world/20140828/192413515/Galileo-Satellites...