I may not be the right guy to say anything but the render looks way to fuzzy to me.
May be try and raise the render layer higher up or posibly take a soft eraser over the render on the top layer.
As we just tested, I am having no issues with Chrome to this point. FF is still fucked up so it has to be something to do with the latest version is my guess.
Thanks Gorlab.
I am using Firefox and it was working fine until I reformatted my PC a few days ago.
Wondering if there is some sort of a add on possible or option that could be affecting it.