So maybe I am just totally missing something, but I have been trying to reload my iphone with my music on ios 5 and itunes 10.5 but am encountering some struggles. I am choosing files from my Music folder on my external, dragging the folders of albums to the "music" tab under my iphone. Instead of the files just beginning to sync, they show up in itunes, but are greyed out. i am able to drag music from my itunes library without a problem. what gives?