I am new to WordPress - I am using it to build a non-blog website, http://www.alanhowesworld.com. I am using the default theme twenty-eleven for now, though will probably change once I have my head round what's available.
I have found how to change the header image on selected pages - but what I would like to do is opt for no header image at all on some pages (to leave more room for content). But I can't. Even trying to use a shallower image was unsuccessful - WordPress just left me with my default.
Can I do this with twenty-eleven, and if so how? Or do I need a different theme, or can I not do this with WordPress at all?