[Evolution] Any way to get compose to just offer a text dialog?

[Scott Bronson <bronson rinspin com>]

Right now, when I try to paste text into the Compose dialog, it gets
indented, with this weird flashy rectangle around it.  When I try to
delete a single character the whole thing gets deleted.  Finally, when
I send the mail, it doesn't look like what I typed in (the indenting
and whitespacing has all changed).  This happens to the .sig too but
that's easy to fix: just turn off the .sig.

It's very frustrating!!

Is there any way to get Evo to offer a plain, dumb text input dialog?
Thanks,

     - Scott