There has been (and are) a lot of problems with blender running on a Mac Mini or MacBook with Leopard. The is caused by the onboard Intel graphics cards which seems not to work with double buffering. However it looks like that OpenGL programs does not need this double buffer so I have been through blender's source code and removed the references to it. A build with the modifications are available for download. I'm looking forward to hear what the blender community say about the build. If the feedback are positive I will make a prober patch and submit to blender.