I'm a former small-town sports editor who (perhaps foolishly) agreed to become the "tech guy" at a Mac-based daily newspaper. Have survived 13 years with lots of help. Anyway, Recently one of the shared volumes on my 10.6.8 Xserve wouldn't let anyone move, copy, delete, change file or folder name. I jumped into the murky world of permissions, ACLs, etc., and now anyone can do anything BUT change the name of a file or a folder. The ACL on this volume is that anyone belonging to the Group has read/write permissions. I had some other ACLs set up for users belonging to other Groups but I've deleted all of those ACLs to simplify this issue. All the files and folders have Unknown as the user, which I find odd since I'm the user account on the server. When a client tries to alter a file/folder name, he/she gets the "You don't have permissions" message. When I try to alter it, I'm asked to authenticate and get an error 100022 message. Any ideas? I'm way over my head. Thanks!