Constant freezing on rMBP.

Mac Technical Support
Hi, so I recently purchased Starcaft 2 after playing the starter pack (which played flawlessly, no issues whatsoever). Now, every single time I try playing it (campaign/versus A.I.) my computer completely freezes up, majority requiring a hard restart due to total unresponsiveness.
Also, upon freezing, many times random color splotches and "lights" show up on the screen.

I've tried everything suggested (fresh install, repairing disk permissions, clearing battle.net cache, installed all updates) and even when running the game on low settings/resolution it still freezes every time I try playing. My computer is more than capable and everything runs great until the point in which it inevitably freezes. With the frequency of the crashes, the game is unplayable.

If anyone has similar problems and managed to resolve them, I'd be ridiculously thankful. The game is great, I just want to be able to play it!

Model Name: MacBook Pro
Model Identifier: MacBookPro10,1
Processor Name: Intel Core i7
Processor Speed: 2.6 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 8 GB
Boot ROM Version: MBP101.00EE.B02
SMC Version (system): 2.3f32
Hardware UUID: 9870F72D-FD72-5B15-9434-579F348D9946

NVIDIA GeForce GT 650M:

Chipset Model: NVIDIA GeForce GT 650M
Type: GPU
Bus: PCIe
PCIe Lane Width: x8
VRAM (Total): 1024 MB
Vendor: NVIDIA (0x10de)
Device ID: 0x0fd5
Revision ID: 0x00a2
ROM Revision: 3688
gMux Version: 3.2.19 [3.2.8]

System Version: OS X 10.8.2 (12C3006)
Kernel Version: Darwin 12.2.1
Boot Volume: Macintosh HD
Boot Mode: Normal
Secure Virtual Memory: Enabled
Time since boot: 4:23
I've had similar issues with my rMBP. Lately though I've seen the performance drop down a lot as well. It seems the game wants to use my HD4000 over my GT650m. I've set it to systemwide discrete graphics card mode.
Ive tried that as well, but unfortunately to no avail. Did you notice that turning off auto graphics switching helped?

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