i only recently got my mac and i have an external HD. i used it with windows prior to getting my mac as it has all my music and other stuff on it. anyway, for some reason a few of the folders inside the HD have a padlock on them, and when i check their properties theyre classed as "locked". i dont know much except that i cannot modify or create anything and its starting to limit my access and i cant do what i need to. anybody know how to fix this? im on the latest mac osx if that helps.