Of course when developing IE is causing me headaches.
This page with rounded corner shaded divs looks good in all browsers: http://www.toptrouwen.nl
But the same sort of divs on this page http://www.toptrouwen.nl/trouwlocaties/zoeken/?search=1 look good in Chrome, Firefox and Safari, but messed up in IE7, IE8 and IE9.
Why?
My guess is that IE is rendering your table differently than the other browsers. In the first link, your divs aren’t inside of a table, which is the case in your second link. Get rid of or modify the table and I’ll bet the inconsistency between your two pages goes away too.