In my default theme, my new 760x130 image shows up AFTER a rectangular 760/200 blue field appears, and the blue 70 pixels show above my new image - NOT the default Kubrick header.
I named my new image kubrickheader.jpg to avoid introducing still another potential problem. Changed css #headerimg - am overwhelmed by functions.php that most likely is involved, and renamed header-img.php so it would not be found since it seems to want to create an image, from how the code looks.
Read all I could and tried two solid days to fix this before posting here. This is my second post on that issue because I could not find my first, after 3 hrs of trying.
The domain is mundi-causa dot org, my name here is ponderman, the prior post title was 'two header images', I believe.
I would greatly!! welcome help -