You may also want to check that you have Style Sheet Compression turned  on,. The problem could be they cannot load all the  CSS files .  Here is an article I found on the topic http://shvetsgroup.com/blog/optimizing-javascript-and-css-files-drupal

-Steve

On May 20, 2013 6:33 AM, "Earnie Boyd" <earnie@users.sourceforge.net> wrote:
On Mon, May 20, 2013 at 7:49 AM, Fred Jones wrote:
> This site http://tinyurl.com/koas49y (I prefer not to publish the URL)
> looks fine to me in whatever browser I check. But one of the owners
> says that the top background image and the title of the site itself
> don't appear for her. She uses IE but I'm not sure which nor which
> Windows--she did recently upgrade both at my suggestion.
>
> Anyhow, any ideas what might be wrong?

FROT for this kind of issue is to have the user clear her browser cache.

--
Earnie
-- https://sites.google.com/site/earnieboyd
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