jQuery Cycle causing page jump?

jQuery Cycle causing page jump?

Hi all,

I believe I'm having an issue with the jQuery Cycle plugin. For the duration of the occurrence of a transition, the page appears to be "jumping" due to the fact that the site content is centered vertically and horizontally and the transition is making (inactive) scrollbars disappear entirely. I have not witnessed this personally in Safari/Firefox on Mac or Firefox/IE8 on Windows, but a colleague took a video of it happening on their machine with Firefox (Mac). Some see this problem, and others don't—I haven't been able to narrow it down. I also can't put overflow:hidden; on <body>, as I need the site to scroll if the browser window is too small.

Here's the video, it's a 1.8 MB QuickTime file:  http://dl.dropbox.com/u/124863/webjump.mov

Also, the live site is http://www.barrongames.com

I'd greatly appreciate any help!