>
> I had both of these set already, and I'm still seeing the "bars" instead
> of > for indenting. :<
>
Add the following to your user.js file. If you don't have one create it.
user_pref("mail.quoted_graphical", false);
user_pref("mail.quoteasblock", false);
user_pref("mailnews.display.disable_format_flowed_support", true);