ok so i downloaded the new itunes 5 dmg the minute i heard it was released, i opened it, and ran the installer and now it keeps telling me to quit itunes before beginning the update but itunes is already quit. in fact the only thing open is installer. i push OK and it keeps popping up. it happens right in the first part of the installation where it says running itunes installer script . the warning also pops up even after i force quit the installer thanks for the help EDIT: nevermind problem solved.