Not sure of an answer to this one but

If you hightlight the part of the email and press reply
it will only add that part to the new message
This way all your emails stay clean be easy to read and wont add all the other signatures etc

ReGards
                     RaY

On Thu, 11 Jan 2007 08:48:14 +0900, Derek Y-E <[EMAIL PROTECTED]> wrote:

Hi Adam and WAMUG folks.
Unfortunately, there doesn't appear to be an easy answer for this one (unless someone as a knowledge of a hidden preference, entered from Terminal)