Yeah, I meant to mention that I did that.

And now I've figured out what I did that was probably really causing a large part of the problem: I had added class="titlebar" to the header row of the table. :-P Now I've removed that, removed the <c> tags, and s/<TH>/<TD>/g. So I think it now looks about as good as I can get it.

Sorry for all the kerfuffle. But... lesson learned!