my aunt recently bought a 6g 120gb iPod Classic. i was helping her sync it on her iMac (leopard OS). have the latest edition of itunes, but as i was ripping music from cd's, it suddenly said that i didn't have permission to save in the itunes music directory. i found out how to apply the 'Read & Write' permission to all subdirectories, and proceeded to do so on the 'Macintosh HD' drive. later, when trying to connect the ipod, its desktop icon only showed an external harddrive icon with a padlock symbol in the lower left corner. ipod also did not appear in itunes. why is it doing this?! Please help quickly!!!