02-07-2008, 04:20 AM
It's a known problem and Apple has posted a work-around:
http://docs.info.apple.com/article.html?artnum=306998
If the Setup Assistant appears unexpectedly each time Mac OS X 10.5 Leopard starts up, and continues to appear even after completing all pages in the assistant, use these steps
Start up with a Safe Boot.
When the login window appears, do not attempt to log in. Instead, click the Restart button located at the bottom of the login window and let the computer restart normally. (If the Restart button is not displayed, click the Back button, then click the Restart button.)
http://docs.info.apple.com/article.html?artnum=306998
If the Setup Assistant appears unexpectedly each time Mac OS X 10.5 Leopard starts up, and continues to appear even after completing all pages in the assistant, use these steps
Start up with a Safe Boot.
When the login window appears, do not attempt to log in. Instead, click the Restart button located at the bottom of the login window and let the computer restart normally. (If the Restart button is not displayed, click the Back button, then click the Restart button.)