You Shut Down your Computer Because of a Problem

I got this message twice, when I got a blackout, and when I had to restart the computer because ML stopped working. Try to search for "gfxcardstatus" in your Console app to see if anything related there.

Try an SMC re-set:

http://support.apple.com/kb/HT3964

If that doesn't work, you might need to consider using something like Onyx to clear out junk...Use it with care though:

http://mac.majorgeeks.com/files/details/onyx_for_mountain_lion.html

I received that message on my MBP the other day, about a week after I upgraded to 10.8.

I recall running the MAINTIDGET widget as Administrator, which cleans our all the system logs/etc. You can get the widget here:

http://www.giantmike.com/widgets/Maintidget.html

If you only leave your Mac on periodically during the day, the auto-scripts that suppose to kick off overnight never get to run; thus allowing junk to build up in your mac.

I ran "Verify Disk Permissions" in Disk Utility. It found some problems, which were then corrected using "Repair Disk Permissions".

I also recall needing to update the ClamXav anti-virus program. It doesn't update itself, and it was at a pre-10.8 compatible version.

After those two tasks, my Mac no longer exhibited the error message upon boot.

Check your Mac to be sure that all programs are up to date (Mountain Lion 10.8 compatible), yoru Disk Permissions have been checked/fixed and that your system scripts have run so that all the excess junk files/cache has been cleaned out.

Hope this may be of some help!

Admin login

I had the same issue on two macs, one very new, for several weeks. Then I learned that when you log in as an administrator the issue is there only one last time. So a log in as an admin produces the screen mentioned above: you shut down you comp because of a problem, I typed yes allow, then the issue is gone for good. odinrumor.

Odinrumor said:

... I learned that when you log in as an administrator the issue is there only one last time. So a log in as an admin produces the screen mentioned above: you shut down you comp because of a problem, I typed yes allow, then the issue is gone for good.

Click to expand...

And this worked for me too. Thanks.

Odinrumor said:

I had the same issue on two macs, one very new, for several weeks. Then I learned that when you log in as an administrator the issue is there only one last time. So a log in as an admin produces the screen mentioned above: you shut down you comp because of a problem, I typed yes allow, then the issue is gone for good. odinrumor.

Click to expand...

I'm having the same problem. However, the problem is occurring in a admin account.

The dialog you mention appears, but before you can click the "yes", the machine restarts the Finder. Loop.

This solved the issue

This solved the issue for me:

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Odinrumor said:

I had the same issue on two macs, one very new, for several weeks. Then I learned that when you log in as an administrator the issue is there only one last time. So a log in as an admin produces the screen mentioned above: you shut down you comp because of a problem, I typed yes allow, then the issue is gone for good. odinrumor.

Click to expand...

Many thanks, Odinrumour. You made my day.

Just had this issue and the above solved it!

Odinrumor said:

Admin login

I had the same issue on two macs, one very new, for several weeks. Then I learned that when you log in as an administrator the issue is there only one last time. So a log in as an admin produces the screen mentioned above: you shut down you comp because of a problem, I typed yes allow, then the issue is gone for good. odinrumor.

Click to expand...

Totally cleared it for me.