I have a page where links to articles open up in a lightbox. IE and Firefox work fine, though some links (not all, just some) get cut off at the bottom in Safari, Chrome and/or the iPad. I can't find any rhyme or reason to it - just sometimes, the bottom few lines are cut off.
The main page is here: http://www.ainonline.com/newsmakers/2011
I'm using two js plugins - colorbox for the pop-ups, and jscrollpane for forcing the scroll inside the lightbox.