I received CD's created with iPhoto 4 and can't open or import them on my iPhoto 2 system. The solution provided by Apple's solution article 93607 is "For compatibility with iPhoto 4 library CDs and DVDs, upgrade all your computers to iPhoto 4." This is a joke, right? It seems incredible that it is the only answer that Apple can come with. Has anyone else figured out a way around this silly limitation?