My energy save in system prederences unlocks itself when I restart  my iMac snow leaopard. Why?

My energy saver in system preferences is unlocking itself whenever I restart or start my iMac (Snow Leopard). It never used to do that and I have no idea why it's doing it now. Does anyone have this problem and solved it? Thank you!

Hello,Sorry but Neil is partially incorrect,in System Preferences click on Security and make sure "Require password to unlock each System Preference pane"is checked off.Once this is checked off then everything will stay locked regardless if you log in or out of your Admin. account.
Message was edited by: RMT07
Message was edited by: RMT07Sorry you are correct I read that all wrong my mistake

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