Joe Sporleder said: >Therefore, I'm now looking for a good commercial backup program for my >server and my network, and is smart enough to get past any permission >problems, and finally, a smart copy that only backs up the files that >have changed There are a large number of backup programs for OS X. (I'd be happy to give you a complete list, if you like). SilverKeeper, Carbon Copy Cloner, Retrospect, and Personal Backup are all very popular. (SK and CCC are especially popular because they are free.) However, given your stated needs, you might find that you really like this one: Deja Vu $25 http://propagandaprod.com/dejavu.html Randy B. Singer Co-Author of: The Macintosh Bible (4th, 5th and 6th editions) Routine OS X Maintenance and Generic Troubleshooting http://www.macattorney.com/ts.html