There was a giant email toolbar that appeared in my instance of Microsoft Word 2002 (correction: Microsoft Word 2003), and turning off all of the toolbars would not remove it.
It’s not immediately obvious how to do it. I searched Google, but there were no good answers on the first page of results. Luckily, it also showed on Groups results, where I found my answer: “Click the E-Mail button on the Standard toolbar to turn it off.”
Here’s a screenshot:

Click that E-mail button, and it’ll disappear. It’s a really stupid design, since it’s inconsistent with the other toolbars. And although it has a “move” draggable area on the left, you can’t actually pull it off and reposition it somewhere else on your screen. It’s pretty much stuck there.
Hope this helps someone.

Many thanks, I accidently switched this on and could not turn it off.
[weeping] Thank you ! ! !
Oh my god finally! I’ve been trying to get rid of that thing for so long. Thanks so much!
Thanks! F*@king Microsoft!!!
Thanks, was tearing my hair out thinking how to get rid of it. Great Tip!