i used the search function but it didnt answer my question...
well, i just installed wp on my local machine (nothing's online yet, so i cant show you)
i got the localized (german) kubrick theme but that shouldnt be different
i made a new .jpg file and named it kubrickheader.jpg and put it in the /images directory
it's the exactly same size, 760x200
so, i dont understand, why it shows up larger then the origninal?! it's about a few pixels on the right and the left wider then the body
i didnt change any php or css files, i just replaced the img which i thought would be the easiest way?!