Hello everyone, I've recently moved my music folder to an external hard drive as back up and thought I would be able to listen to the music on my MacBook Pro without having to be connected to the external hd because I have a music folder in the internal hd too. I've tried changing the location of the iTunes music folder back to the internal hd location, and my music still won't play. It says "The song "Title of song here" could not be used because the original file could not be found. Would you like to locate it?" Someone help, please?