I installed the Security Update 2012-001 about two weeks ago and after rebooting my system all dark colors were strangely pixelated (on Safari and everywhere else).

Here's an example:



Notice how pixelated it is to the left.

And in Safari (look at the glossy stuff):



I looked at my S/L/E folder after the update and saw that the last modified kexts (on the same day I updated) were the IOGraphicsFamily.kext and the IONDRVSupport.kext. So perhaps that has something to do with it. I tried using an older version of the IOGraphicsFamily.kext but to no avail.

It's a minor annoyance but I would like to get rid of it.

Nvidia 9500GT
Gigabyte 890GPA-UD3H
AMD 1055T
10.6.8

Hmm.. 32-bit colors?

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My Hardware
CPU: Intel Celeron G530
Memory: 4.00 GB DDR3 1333Mhz
Graphics: NVIDIA GeForce GTX 550 Ti
OS: Mac OS X Lion 10.7.4 - Vanilla kernel
Motherboard: Gigabyte GA-H61M-D2-B3

How would I change that? I'm considering just reinstalling the OS as I have no idea how to fix this.