Rendering of Javascript Derived Tables is the problem.
I figured it out. My problem is my news scroller script, which uses javascript to pull together a table 150p wide to display some news in. MX 6.1 just displayed a little script icon. 2004 actually tries to render it, but can't figure out the width, so it defaults to the maximum.
I consider this a bug in 2004. Afterall, many of us just might want to use a little javascript.
i've got to say though, Expanded Table View rules for doing table based layout. I can do what would normally take hours in minutes. It's a nice fix of a classic wysiwyg table editing problem.
PS I am editing the code above to show only the code that is blowing apart MX 04's table rendering.