Ah, that's better, but not perfect yet.

There still is a problem due to the fact that IE renders the horizontal scrollbar inside the space alotted for the block. A similar problem for images is discussed here http://www.thescripts.com/forum/thread567473.html and there seems to be a solution here;
http://www.oreillynet.com/pub/a/javascript/synd/2002/11/15/css_pitfalls.html?page=3