Mary C.Youra said: >Do you really mean 20% full? > >I thought I'd understood you to say previously 80% full (meaning 20% >space remaining). If it's needed at only 20% full, I should start >paying attention. Really! 8-{D Yes, it's 80% full, 20% remaining. http://www.macfixit.com/article.php?story=20050310003145313 See under: "Make sure you have enough free space on your startup volume" 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