overlay:hidden not honored on cached page?

something similar has been reported in a couple of recent comments on the doc page.

I am using
version = "6.x-1.35"
datestamp = "1292131537
drupal = 6.19
browsers=opera,chrome,firefox on linux

running the sample slideshow provided in the documentation, I noticed that while the slide show works fine on first view all subsequent accesses to the page show all the images in the slideshow next to each other. This does not seem to be a problem with the cycle js plugin: if I disable javascript using firefox noscript I see that the page displays fine until I click either refresh or the "next slide" link. After that all images appear next to each other (see
https://www.acceleratecarboncapture.org/drupal/public/slideshow-test-page). When I empty the site cache everything is back to normal for one access.

It almost looks like the overlay:hidden in slideshow_creator.css is not honored when a page is displayed from cache.