One more Acid2 bug has been fixed in build 7621. If the calculated height of an element is negative, then the height of the element should be clamped to 0 (I can't actually find this in the spec., but Ian assured us this was the case). Opera allowed negative calculated heights, which could lead to some interesting renderings. Check this test case to see how your browser handles it.
Now, the height is simply clamped to 0, fixing the rendering of rows 10 and 11. No longer is our Acid2-man indifferent. He's smiling!
