Still needs some cross-platform fixes
The problem is still unresolved on the 5870 card, and results in a black screen See also http://forums.amd.com/devforum/messageview.cfm?catid=392&threadid=129431
Added Demos/ThreadingDemo showing how to use the cross-platform btThreadSupportInterface under Windows. Added Demos/ParticlesOpenCL showing how to run the NVidia particle demo under OpenCL implementations by AMD, NVidia and MiniCL (CPU)