I recently discovered that you could format the visual editor by creating an editor-style.css style sheet so that it matches the look of the theme (which I thought to be extremely useful for my less technical clients). However, when I tried to use the "Paste from Word" button as my clients might normally do, it no longer worked. When I first press insert, it shows up nicely in the editor window, but as soon as I publish and look at the post all that Word formatting shows up as text. It doesn't ruin the formatting as it might do if it was interpreted as HTML (like it does when you paste from Word without using that button) but it shows up as if it is part of the text. I am posting this here instead of reporting it as a bug to see if anyone has had this experience or can duplicate it. I searched in WordPress Trac and in the forum (as well as Google) and couldn't find any reference to this.