After recently updating my MacBook to 10.5.8, I've noticed that the option to require a password to wake the computer from sleep/screensaver no longer works. I put the thing to sleep, and it comes right back to whatever I was doing; no password.

I'm able to toggle the option on or off, but no amount of setting or resetting seems to change it. It definitely worked before the update.

Any ideas?

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  • Post a picture showing your Security preferences pane, so we can see the complete set of options you have selected. I believe this might be an OS 10.5 bug, that is not present in 10.6.8 nor in 10.7. Did you really mean "10.5.8", or did you type that wrong? – Warren P Dec 18 '11 at 14:07
  • Posted! And I did mean 10.5.8; I'd not done system updates in a very long time, and after performing all of them, 10.5.8 is where I wound up. – IVR Avenger Dec 18 '11 at 15:02

I dragged this file to the desktop, then rebooted:
/Users/<my username>/Library/Preferences/com.apple.systempreferences.plist
This caused the OS to generate a new file, and my Laptop is now locking like a champ.

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