Why Is WoW Crashing So Much?

Hello Apple/Users,

I have this major problem while playing WoW on my MacBook Retina; I keep crashing! It is not like a regular crash when it shuts down, and you would get an error pop-up. No, it completely freezes, making me unavailable to do anything. The only thing I can do, is holding the Power button shutting down the computer manually. I have had this problem both while playing WoW and Minecraft.

Note: I am playing on Molten-Wows private server 4.0.6.

Specs:

MacBook Retina Display 15"

2,3GHz Intel Core i7

NVIDIA GeForce GT650M (the graphic card used while playing)

8GB RAM 1600 MHz DDR3

OSX 10.8.2

Things I have tried:

• Deleting Cache, Logs, Erors folder in WoW
• Deleting .plist files from Blizzard
• Setting graphics down (actually they have been down at the whole time)
• Installed gfxCardStatus to check if I really used the NVIDIA graphics card
• Posting a thread on www.molten-wow.com, and www.wow-europe.com

Thank you in advance, I really hope someone can fix this problem for me.

PS - If you need any other information, please let me know, and if I posted this the wrong place, please tell me where to post it otherwise. I would be grateful.