please see
http://www.spinalmedicine.com/forums/index.php?topic=12
if you are using IE6, notice how the Quote button (to reply to a message and quote it) is off to the side and partly chopped off? I can't figure out why. if I log in as admin so all the buttons are there, the last button "Split topic" is chopped so I get :"Split top".
I tried stripping the code down as much as I can and still couldn't get it to display right.
Looks fine on Opera and Firefox. html and css validate on w3c w/o error.
I figured out the problem: one of my style class used em units in padding. Apparently, IE doesn't like it.