I recently had reinstall Panther from the disc, and it said my system settings/info would be saved in a folder which is called "Previous Systems" which contains some 45,000 files that seem useless to me. I was going to just ignore it, but i come to find that it takes up 2.7 GB of hard drive. I was wondering if it would be ok for me to delete this file. In addition, sometimes when i am deleting something that i know i don't need i get a message saying the item cannot be deleted because it is locked. How does an item get locked and is there any way to delete it.