Downloaded 7.7, and it opened both my wife's and my iTunes libraries. Perused the App Store, etc, very cool. But now suddenly I get a dialog that says "The file iTunes Library cannot be read because it was created by a newer version of iTunes". Great. And yes, it says "newer". What could be newer than 7.7?! All this happened in a half hour. So now what? We can't access our stuff!!!!