Cannot restart or shut down...

From the apple menu I cannot shut down, restart or log off. When I click shut down, etc from apple menu, nothing happens. I can't force quit and I cannot access about this Mac either.
All other items in the apple menu are working.
The only thing connected to the computer is my printer.
Any ideas?
Thanks!
Keely

Hi Keely,
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for action in Safe Mode... does it work there?
Reboot, test again.
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.

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