macbook pro rendering issue I have a macbook pro early 2013 model with i7 processor and nvidia m650 graphics but when i go to the settings to enable gpu rendering there is no option to select it only cpu rendering can anyone tell me why this is?
You need to install the latest Nvidia Driver for you graphics card. You can download them from  the nvidia website here: Mac Nvidia Drivers. After you have done this you need to restart blender and the CUDA option should be available under the System Tab in you User preferences.