Spontaneous shut down and possible kernel problems?

Hi,
So I was using my macbook pro today (running OSX 10.8.2, bought spring 2010) and the screen froze. The screen image changed- it looked like someone ran thier fingers through a wet painting. I force restarted the computer with the power button and about 10 minutes later the computer shut down on it's own with no warning (I was typing and the screen went black.) I attempted to start the computer again by pressing the power button. The computer eventually turned on when I held the power button down. A black grey screen appeared and the computer made a plusing, low toned beeping noise. Since I was in a class, I was not able to determine the frequencey of the beeps (just trying to get it to turn off). I held down the power button and it eventually stopped after about 3 minutes.
I was able to turn on my computer after class and it has been running fine (if a bit slow) for the past hour. I checked the console log and the report for the restart and both cite "kernel panics" (i.e.
Kernel stack memory corruption detected"@/SourceCache/xnu/xnu-2050.18.24/libkern/stack_protector.c:37).
I've been reading about kernel panics on the support community but I'm not sure what to do next to solve this issue. I had similar problems at the exact same time last week with the screen and shutting off but I attributed the forced shut down to low battery (the computer just turned off and then ran slowly for the rest of the day once I got it plugged in).
Thanks!

Try a safe boot, hold the shift key and power up, this will take a little loner than normal, hold the shift till you see the progress bar. See if it works normal, if it does than it is more than likely some 3rd party software.Then restart normal and check your console for panics. That would be your isssue. You can also start holding command R and restoring from utililities. Back up before you do anything.

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Try a safe boot, hold the shift key and power up, this will take a little loner than normal, hold the shift till you see the progress bar. See if it works normal, if it does than it is more than likely some 3rd party software.Then restart normal and check your console for panics. That would be your isssue. You can also start holding command R and restoring from utililities. Back up before you do anything.

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hello there
So, last week I went to the Carrefour Laval apple store to go check out my macbook because it had shut down 3 times in a row for no reason. The genius checked everthing out, ran some tests, and said everything was a-okay, that I might have simply just xperienced a random, insignificant crash. But, yesterday my computer shut down again as I was surfing the internet. I waited about 1 minute and powered it up again. everything seemed fine. so, about 1 hour ago, im checking my emails, when i go up to the toolbar to select a different website, when my mouse pointer seems to start disappearing on and off constantly. so i close my internet window and this weird loud and quick clicking sound comes from my computer. I open up another safari window, and the sound stops. and this happens over and over again as i open and close safari windows. then 10 minutes later, i am watching a dvd when my computer shuts down again! what is going on? Im so tired of this. i would like to have some advice before i go see the genius again. the thing is i cant reproduce the problem for him, it just happens randomly....
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BeamBoy wrote:
The only thing I havent been sucessful with is the patch KB981112 - refused by Windows with the message "Application refused on this PC".
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Spontaneous shut down and possible kernel problems?

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