maalesef. preferences'la alakası yok.
ama şöyle bir alıntı var:
"Try repairing your keychain. It typically asks for the original keychain password but it should, typically, be your login password. To repair your keychain follow the steps below:
Go to Keychain Access in the upper-left
Select "Keychain First Aid"
Enter your username and password and select "Repair" then click "Start"
After your keychain as been repaired, go to "Preferences"
Select "Reset my Default Keychian"
Enter whatever you want the new password to be and you should be good to go."
*
discussions.apple.com