this is a very strange problem, that I just cannot figure out. When my site ( http://crossconnectionchurch.org ) loads on an iPhone or iPad the header image, part of my navigation and the search box I have in the header all disappear. You can see these when the site is loading and can click on the invisible links once the site has loaded, but you cannot see the components.
My first hunch was that it had to do with the slider I'm using on the main page. As a test, I removed the slider, no fix. Also, the problem persists throughout the whole site, on pages that do not have the slider. I've disabled plugins, nothing seems to fix it. Again, this only happens on iOS devices (iPad, iPhone, iPod touch).