Hi timp I noticed that you provided the zip file, but I could only figure out what to do with the postInstall folder: 1. copy data from org.chameleon.Boot.plist 2. copy data from extra/extensions into the System/Library/Extensions folder Can you clarify what you mean when you say, "I also moved all NVDA* and GeForce* kexts out of SLE"? Also, I noticed the is an "ForSLE" folder in there, and I'm not sure what to do with those files. Can you clarify? I was able to get OSX Mountain Lion (Niresh) up and running, although i'm getting so much lag it's almost unusable. It improved slightly when I modified the bios, added the data to the chameleon file, and dropped the extensions in the folder. I do believe I have the same configuration you do. Any help is greatly appreciated!!