I have installed the Developer Drivers (4.0.19), the CUDA tools SDK and the CUDA samples.
When I install the Toolkit 4.0, I receive the confirmation that installation was successfully completed but no new folder seems to appear on my computer.
I cannot find the Visual Profiler (computeprof.app), the debugger or the accelerated libraries…
I have OS X 10.6.8 though, so it should work.
Thanks for your help!