Try a Google search on the suspected problem or maybe modify it according to your situation, ie: add the Mac OS version you are running or any other specific details you think might be involved:
How often does it happen???
Have you tried booting up in Safe Boot Mode, then run Disc Utility First Aid when so booted, then just Restart your Mac normally?
It might fix the problem.
- Patrick
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How often does it happen???
Have you tried booting up in Safe Boot Mode, then run Disc Utility First Aid when so booted, then just Restart your Mac normally?
It might fix the problem.
- Patrick
=======