InfoWindow in IE ignores Height and Width

I've followed many suggestions here to get the InfoWindow size to
display properly in IE 6.0, but sometimes it's sized correctly, and
other times it just ignores the div style, and an InfoWindow with the
default size appears with much of the content appearing outside the
window. It works fine in FF.

For testing, I've reduced my window content to just a single word in a
div, and the problem still occurs. I've put a border in my div and it
appears with the correct size. The InfoWindow just ignores it and
makes it's own size. My code has also been reduced to the most basic
stuff you see in the API:

marker.openInfoWindowHtml(html);

And the html is also just simple stuff that renders properly on an html
page. But the InfoWindow size is still screwed up in IE. WTF? This
is driving me nuts! Any help is really appreciated.