Ray-trace problem.

The weird black spots,that appears when i check the "Maximum" OR Raytrace option to on.
Information:-
Almost all of my motherboard(only the audio,but its HD) is from nvidia,Upgraded from the last update for the drivers and nothing was glitching in toribash only that,in other games like COD,Minecraft,GTA etc aint glitch.
I really want it to be like the videos in the youtube or like the raytrace that most people have,help?;o