mountain lion reboot automatically

You can try a clean install of ML instead of upgrading from SL. You will have to create a ML install drive first.

See : http://reviews.cnet.com/8301-13727_7-57479690-263/how-to-create-an-os-x-10.8-mou ntain-lion-install-drive/

It is possible that this is a hardware problem. Try http://support.apple.com/kb/HT1509 to check your hardware.

My New MacPro 2012 quadcore is doing the same, it keeps restart and said "Your computer restarted because of a problem. Press a key or wait a few seconds to continous starting up."

Thanks for posting this thread.

I have the exact same problem with my Mid 2010 Macbook Pro, freezing, then rebooting automatically, sometimes every hour sometimes every 10 minutes, and sometimes going into infinite loop rebooting even before the current rebooting has finished.

Im running Mountain Lion upgrade from brand new Snow Leopard clean install, i guess i should have made a clean install, hope to get this fixed with an update from Apple so i dont have to do all the installing of software again...

Any ideas for fixes?

Same here. Exactly the same problem Mid 2010 Macbook Pro. Mountain Lion upgrade from Snow Leopard. Initially it seemed like it happened when sometimes activating Mission Control but after removing from Hot Corner and Trackpad swipe it still keeps rebooting with error message "Your computer restarted because of a problem" intermittently.

Have run repair disc permissions with Disc Utility. Apart from erasing the hard drive any other ideas please?

I recently had a new Logic board too, but problem remains...

If everyone encountered this after upgrading the operating system, I fail to see how this can create a hardware problem. I've just updated to 10.8.1. Did not see anything in documentation relating to a fix for this problem but am kind of just hoping it goes away at the moment. System rebooted itself spontaneously 3 times yesterday... am wondering if I should just downgrade back to Snow Leopard.

Same here on a mid 2010 Macbook Pro. I do not think it is a hardware problem, with me it is clearly related to the system reloading apps after sleep / boot.

Keep sending bug reports to apple, I hope they fix this soon.

I tried everything to solve this up to erasing my HD and installing ML from a USB drive. With no other software etc installed I still had the problem. So finally I took it in to an Apple Store to have it checked out. Apparently there is a problem with some NVIDIA graphics boards that shipped with this model and sure enough my MBP failed the hardware test. I am currently getting my logic board replaced. As to why this problem only manifests itself when the OS is upgraded, I have no idea. Hopefully this fixes the problem.

I'm having the exact problem.

I recently upgraded my macbook pro mid 2010 to 8 GB RAM, firstly it ran great with Mountain Lion for the first month.

Then when I start using adobe softwares heavilly (photoshop, illustrator, after effects etc), then my computer having this issue, then I thought "Oh it must be a bad RAM" so i replaced it with the original 4 GB RAM. It solved the problem, but sometimes this issue still occured like once a week, in an unpredictable manner.

This is annoying

I'm still on 10.8.1 OS X, and there is a queue update in my app store.

We'll see after I installed the update.

I have a mid 2010 Macbook Pro with fresh install of snow leopard upgraded to Mountain Lion with the latest update as of today 10/17/2012. Before up grading I never had an issue. In my opinion this has to be software related. There are to many people that are having this problem after updating to Mountain Lion. Specially those of us with mid 2010 models. I love apple products but this can be very annoying when I am using my computer for recording music and it crashes while saving a new track. I will post any new info I find on this in the future.

I had the same problem after upgrading my mid 2010 Macbook to ML from Snow Leopard. Hence assumed it had to be software related. I did a hardware test in an Apple Store and they told me there was a problem with my graphics card and replaced my logic board. Have not had a problem since. My macbook was out of warranty but they did replace it for free so I'd suggest trying the same.