Thanks for your comments Nigel.  I will try to find a recent render with streaks on it to show. But I was not aware of the size of the shadow map size and its affect on the artifacts . I have been setting all my shadow map sizes to 1024. You may ask why 1024? well I dont know 256 is the default size. I tried 512 then went to 1024. I tried 2048 and I could not see any difference with my eye. But there was a little bit longer render time. So I stuck with 1024. The same theory is true for my render sizes . I have a very fast computer now. So I have been trying to render at 3000 to 3500. Sometimes I get a message after the shadow maps have been calculated that " A problem has occured and a map cannot be read and  I should reduce the size or reduce the bucket size.   The default is 64 If I reduce the bucket size to 32 or maybe even 16 it will then render. I am going to experiment with the shadow map size and see if it reduces artifacts. But as I said I dont want to just increase  everything and just have overkill and longer renders with no visable differance in the quality of my renders. I am becoming convinced that most of the photo real looking renders I am seeing have more to do with materials and the newer V4 type models that are using very photo real texture maps and shaders. I think that some of the new Daz models look real even with the poser 3 light default setup. This was not  the case a few years ago. Thanks again