Indexhibit Support

This question came up in another forum, but is more appropriate to this one.
Overlay is selected for one of my exhibits, but when any image is clicked on, regardless of the browser, the images appears halfway down the page so that you have to scroll down to see it.
From what I can tell, this is a CSS issue, but I have no clue what specifically is causing the problem.
I've made only two code changes to my site. One was to increase the file size limit in my site to 1000kb, which should have no effect on the layout in Overlay. The other was the fix posted in an old thread that fixes the previous Overlay problems with Chrome. After making that change, everything was working fine, so I don't think that's it, but can't be sure. Many have used this code without any problems.

Here is a link to the exhibit with the problem: matthewshain.com/index.php/project/shooting-range/
Just click on any image to see what's wrong.

Please help. Thank you.

you got to think backwards with this.
First upload the overlay format and check is things are working fine.
Then re-apply the chrome fix and check.
If you're using Expanding Menus disable the plugin and check (the Indexpand plugin is recommended)
As you already said this is a css issue - maybe there's something somewhere else in you css that overrides or brakes your overlay css.

I see what you mean about thinking backwards. I tried everything you suggested in order. I even disabled Overlay with the intention of re-enabling, but when I went to check my site to see that Overlay was disabled it was still working, albeit incorrectly. I'm baffled as to what is going wrong here.

Thanks for trying to help. If you or anyone else has any advice, I'll happily try it.