IE7 failing to load images from Cache when using $(document).ready

IE7 failing to load images from Cache when using $(document).ready


My chess site (64squar.es) quite a few images (chess pieces). It also
renders the board dynamically on document.ready.
I find that document.ready causes IE7 to sometime fail to load all the
images on the page, even though they are definitely cached.
I was hoping a fix for this was to use window.onload to reload the
images. But unfortunately window.onload never gets called (my guess is
because that the page is never fully loaded).
Does anyone know why this might happen, or a way round it ?
*...(