system preferences crashes
This morning when the computer booted up, it did not start the programs I have saved under "Accounts," "log-in." I figured they'd gone missing; they've done that before though I don't know why. But when I opened System Preferences "Accounts," the system preferences crashed. I have tried numerous times. System preferences comes up, but when I try to open any of its options, it crashes.
I have already tried to replace the System Preferences using Time Machine. I tried it twice or three times, using different times last week. It didn't help.
Time Machine-OTHER, Mac OS X (10.6.8)