Power Management not working

I was having trouble with my Power Management settings not working. When running on the Power Adapter, my computer would stay awake with the screen on indefinitely, and when running on the Battery, it would shut off the screen after 1 minute and sleep after 5 minutes. The problem showed up when I would change the sliders in the Energy Saver window only to watch them go right back where they were after about 10 seconds. Obviously the lock was unlocked, but I was unable to change the settings no matter what I tried.
The solution came when I checked the Power Management preferences file located in the pref file at /Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
I brought up the information for the plist file and noticed that under Sharing & Permissions the Admin account was missing. I added Administrators to the permissions list and voila! The Energy Management panel began working again!
Problem solved and I hope this helps anyone else out there as I seemed to be the only one having this problem.

Hey Chad - Thanks for this tip - I checked in both my user library and the system library and couldn't find either the plist doc or the System Configuration folder. I'm having trouble with energy saver since the latest OS X update and wondering if they've blitzed it somehow!
Any ideas?
Vince

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