captions offset

Question

One of our designers used tinyslider for building the slideshow on http://www.radford.edu/NewsPub/invitations/EOY2010/gallery/index.html

I've had to tweak the css to get some positioning changed for viewing, & now about half of the people viewing it see the captions as appearing to the right of where they should be.

Since it seems to working for some, but not others, I'm puzzled.

As far as I can tell, they're all using IE in Windows (screenshot attached).

Any ideas on fixing that bug?

thanks!

-j-