Hello, I have an external backup disk and I can't change the read/write permissions. It was working great with SL but now I have read privileges only. Any idea? - The DS user is the admin and is located in the "staff" group. - I plugged in another external drive and it is working good, the "staff" group has read/write privileges allowed. - All files in this drive appear as "Locked" when opened. PS.: I already tried opening the lock, but the system does not allow me to change anything. Thanks!