I'm having problems with IE 8 and the JB Faq. What I'm seeing is that when you open a question or open all or close all, it's doing weird stuff with the margins and padding. For example, I have a 5px or so padding on the answer itself. When I open the question, the padding is gone. As soon as I mouse over it, the answer shifts down to the proper setting.
You can also see it when you open all. All the text is compressed. When you close all, it makes the lines go down to line-height size instead of the spacing I normally have.
You can view it on this page. It works fine in IE 7 and FF 3.6 and in Safari 4.