Background CSS problem

I think the problem is that Kubrick has some preset images in the header.php. I had this problem when altering this theme of the same type. You’re adding an image in the css (I think), but the header.php is looking for another conflicting image. I might be wrong, but I think if you adjust the image in the header.php, or replace that one with the one you’re calling in the css, it might work. Again, that’s just a thought, as I am a coding idiot.