I have a Mac that is running OSX version 10.8.5. I just installed Ae and am learning that I have no shader model on my OpenGL, and no CUDA at all. If I have an OpenGL, do I need CUDA also? How do I upgrade to shader model 3.0 or higher to achieve the minimum requirements for Ae? This is all pretty new to me, so speak slowly…
Utterly irrelevant. The availability of OpenGL itself depends on the graphics driver and the possible shader models on the hardware capabilities and the client implementation. AE will never go beyond OpenGL 2.1, anyway and does not support arbitrary shaders, so, again, it's completely a moot point. CUDA is totally unrelated to OpenGL, but limited to nVidia hardware. Anyway, since you have not provided any proper system information, we cannot tell you anything more.
I don't understand your question. Are you seeing error messages? If so, what is the exact text of the message?