Could someone please kindly guide me if there is any possibility that i can install Mavericks into my macbooks 4,1 and 2,1. As i read the guide from macpostfactor they have said that it is not recommended to install OSX Mavericks or Yosemite into these machines because of the GPU (GMA X3100...) as it would not support hardware acceleration. However, i did further research and read some posts and watched videos of these type of macbooks running mavericks or yosemite. Addditionally, would kextutility.app help "patch" my system or its the end of the line from here?