I've seen this problem pop up all over the place since Mountain Lion came out.

One second you're working on a paper or just roaming around the internet, and the next second, the video display starts going haywire and then freezes. The mouse continues to move but you can't seem to do a restart from the OS. You have to do a cold restart.

I'm trying to find out if anyone has gotten a work around just yet because the cold restart thing is going to kill something eventually.

Anyone else with this problem?

9/30/2012 3:48:21 PM

What Mac do you have? Give some specs

9/30/2012 5:41:07 PM

My wife's 17" MBP is now (randomly) having this problem. It's long overdue for a fresh reboot, so we're reinstalling 10.8 from scratch this coming weekend. Super annoying.

10/5/2012 12:40:38 AM

merbig,

It's a late-2008 Macbook Pro, it often happens after the macbook wakes from sleep, and safari is the only program open.

I may type in an address or click a link on safari and then it just starts scrambling a little, and then the screen freezes. The mouse still moves, but it won't be able to open anything. Even if you click on the apple logo at the top left and try to guess where restart is, it's not obeying the command.

What specs do you think would help?

I can describe the event, but unsure as to how to collect the proper information once the event happens.

10/7/2012 4:44:07 AM

http://support.apple.com/kb/TS2377

Is your computer part of this repair extension?

10/7/2012 10:12:18 AM

No, I'm using the unibody which has the 9600 series nvidia graphics chip.

I think I've found the problem though. It's Safari related.

Try using ONLY Firefox and the problem hasn't come up for since.

Anyone else find this is true?

10/13/2012 4:53:46 AM

So far so good.

This only tells me even more that it's a Safari problem.

10/18/2012 6:24:49 AM