Vista - No image in Windows Mail signature

Hi all,

I have a problem with Windows Mail Signatures in Windows Vista.

When i create a signature in html with my logo (referenced to a remote
source on my website, such as src: http://www.......) and try to use this
signature in replies to people, the image won't show (note that if i create a
blank email and then insert the signature it works fine).

Does anybody know how to resolve this problem as its driving me mad?

I could do it before with Outlook Express but now that i have Vista its
causing this problem

Many thanks for any help

Danny