Black pixels in render when using Cycles material I already tried adding more subivisions, tweaked the light bouncing parameters, etc, but I cannot get rid of the black pixels when using  Cycles material copied from a YouTube video.



Here is the source if someone wants to check it out:

https://dl.dropboxusercontent.com/u/1541106/spots.blend

Thanks!
I am not getting those spots when I render the scene.  Perhaps try rendering with the CPU instead of the GPU.

I rendered with the CPU.  My results: