I have a few sites with centered layouts and any modalbox script positions the containing item in a relative position to the parent item instead of left:0; bottom:0; or whatever it will be over to the right in relation to how much space is outside the main site container. So if I have a 900px wide site an the window size is larger than 900px, the modal position will be off.
I applied "position: relative;" to very element I could think of, is there somthing else I should look for?