B.ru_c-e_=95K1u-tch-k0 =?WINDOWS-1252?Q? ?= said: >OnyX running under Tiger reprots "OnyX will not run with this version >of Mac OS X". It will require an upgrade. Thanks! On the other hand, you can do everything that you need to do, as far as routine maintenance goes, using tools other than OnyX. In fact, I may update that page and leave out any mention of OnyX. As OnyX has been updated, new features have been added to it that are simply not a good idea to use. Originally I recommended OnyX because it was a nice, free, multi-function utility that couldn't get you in a lot of trouble. That really isn't the case anymore. You may, instead, want to check out: YASU http://www.jimmitchelldesigns.com/yasu.html Yasu has already been updated for Tiger. 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