as owner of a 2006 mac pro, with the Apple version of the Radeon 4870, that officially is not supported by my machine but actually works perfectly, and upon reading this article, I have a question. Much of the reason for purchasing the 4870 was 1. needed a graphics card, and 2. wanted to be able to have OpenCL enabled on my machine. This article states that my 2006 mac pro is not supported for OpenCL. Now, I can understand Apple saying this, since none of the original cards for the 2006 machine are capable of OpenCL. But since I have the 4870, I would hope that though my machine is officially not capable of OpenCL, for one reason or another, can anyone confirm or disconfirm that OpenCL is supported on the 2006 mac pro with the 4870? When you're running Leopard, is their some type of evidence that would show whether OpenCL is running or not, such as in system prefs, or system profiler, or something? thank for reading and thanks for answering, if you can. *I originally posted this question in a thread in the news section, but have decided that it may merit its own thread.