Can't access Keyboard and Mouse panel of System Preferences

I can't access the Keyboard and Mouse panel of System Preferences. System Preferences starts up fine but when I click to access the Keyboard and Mouse panel, System Preferences indicates in the title bar of the window that it is loading the panel but it never does.
Does anyone have an idea about how to fix this? Thank you.
Brian

Hello Brian:
I would trash the preference file (com.apple.systempreferences.plist) and then restart the computer.
Barry

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Can't access Keyboard and Mouse panel of System Preferences

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