Maybe its just been me, but for the last year + Genius on iTunes quit working. It would report an error anytime I would launch iTunes and try to update, or if I manually told it to update my Genius playlists. Today, magically it connected, sent in music info, and delivered updated results from Apple! I'm THRILLED as my quad G5 remains my primary keeper of music, and the machine I sync my "big" iPods to. If you too were experiencing problems with iTunes 10.6.3 and the iTunes store, spin it up and see if you have any luck today as well.