Self,

>I may be missing something here, but I think I've read the code correctly, and I'm alerting my clients now to disable any 3-pane views they have configured -- just in case.
>
>Comments, anyone?

After another look, I don't think the HTML page is ever sent as an email, so the scenario just described would not happen while viewing the email itself, but the HTML version is stored on the hard drive and would act the way I described if opened in the browser.

Sorry for any cornfusion.