I noticed that when I display a dialog in FF the bottom "close" button gets cut off. It is fine in MIE.
cut off bottom in FF 22.214.171.124
looks fine in MIE 7.0.5
when you resize the window in FF it goes away. a force-refresh brings it back.
hopefully it isn't something I am doing incorrectly from my end.
here is a live example: http://www.gabbr.com/sandbox/yahooui/yahoodialog8.php