Accounts preference pane will not open
When I try to open the Accounts preference pane in system preferences it says "Loading Accounts..." in the header bar but nothing happens. If I again select the Accounts icon the preference pane goes blank. I have no idea when this started because I don't need to access this pane often. How do I gain access to my account setups?
iMac G4 1.25 GHz, Mac OS X (10.4.10)