And of course, you can have both your old OS and Panther available to you if you partition your drive. Just be sure you don't erase your backup :-) Rick > Thanks for the advice. I will try the backup method. > > Robert >> >> >>> To be safe, when/if you upgrade to Panther, you might back up your >>> current working OS with either Carbon Copy Cloner (latest version) or >>> Panther's new Disk Utility which you can access from one of the drop >>> down menus in the installer. If something doesn't work, you can then >>> restore your old OS.