24" iMac Screen Freezes since 10.6.3 update - pls help!

I don't know if this is just coincidence or not, but since updating my iMac to 10.6.3 it keeps on crashing. On 3 separate occasions today, whilst using my Mac the screen has gone completely black with thin white lines down it.....see pic below:

http://picasaweb.google.com/lh/photo/6SYzhCgVYEU5TBKqRfOQ1Q?feat=directlink

The fans and hard disk are still running but it will not respond to any keyboard or mouse presses - I simply have to turn it off by holding the power button in.
It will then restart as usual.

Anyone got any ideas? Do you think that if I was to re-install Mac OS X from my original install disk it could solve the issue?

Thanks

Darren

24" intel imac 2.8Ghz, Mac OS X (10.6.3)

Posted on Mar 31, 2010 2:43 PM

1,804 replies

Nov 13, 2016 7:20 AM in response to mattwinters78

I am aware that this is an OLD problem, but I just picked up a 2007 iMAC with the same issue. Thanks for the instructions, but how in the world do you REMOVE the AMD Kext files exactly?

Nov 13, 2016 7:24 AM in response to steveylin

Could you lay out in detail the REMOVING of the AMD kext files in El Capitan? Would love to make my old iMac run without crashing. Thanks!

Eric Root

Level 10

685,215 points

Nov 13, 2016 7:41 AM in response to jdotlopez

You might want to consider starting a new discussion. Since this one is a couple of years old, less people are likely to look at it. A new post would be much more visible. You can link to this one. Post in the El Capitan community.

Nov 14, 2016 7:00 AM in response to jdotlopez

I'm not sure if below link works, but go back to page 117 of this thread and there's detail instructions from davidefrombruino On Oct 4,2015

https://discussions.apple.com/thread/2384136?answerId=29161725022#29161725022&start=1740&tstart=0

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24" iMac Screen Freezes since 10.6.3 update - pls help!