You have started treating height of floats as minimum possible height. Therefore, you are incorrectly resizing the DD in the above URL based on the bottom margin of the BLOCKQUOTE. Note that you can get the correct rendering by changing the BLOCKQUOTE margin: 1em 1em 1em 2em to margin: 1em 1em 0em 2em, which shrinks the DD back to the size it should be in both cases.

Setting all current Open/Normal to M4.

per leger, assigning QA contacts to all open bugs without QA contacts according to list at http://bugzilla.mozilla.org/describecomponents.cgi?product=Browser

I just checked in a fix for this - it turns out that the area frame code was trying to be too clever; I've fixed it so that it checks for a mandatory height and when present doesn't do its auto-sizing work.

Fixed. Tested in Apprunner with Mac (March 9th Build) and Windows NT, Win 95 (March 8th Build).