Greetings, all. I have an early 2009 Mac Pro, firmware patched to 5.1, running a W3680 on OS 10.8.4 with 14GM RAM. I recently installed a MacVidCards-flashed 3GB GTX 580 that seems to work well alongside the old OEM GT 120 card that came with the machine, allowing me to run 3 monitors. I've got the latest NVidia graphics driver, 313.01.02f01. I'm getting wonderfully accelerated CUDA effects on Adobe Premiere and AE. So far, so good. The problem is when I try to run any of the OpenCL benchmarks - it's clear that the 580 card isn't running OpenCL. When I try to run the OceanWave benchmark it reports bandwidth transfer speed of 5.52 GB/s, but won't run the benchmark, reporting "ERROR: Failed to initialize OpenCL = mostly by OpenCL driver didn't know your gpu, like Fermi GTX.... which need to be patched". Similarly, the LuxMark benchmarks all give errors when trying any of the OpenCL modes. Is there a patch available for the NVidia drivers to enable OpenCL on a system with these 2 graphics cards? Help!!!