How can I killing ALL images in Mail.app

hello,

My really slow mac mini at work likes to display images. I've tried turning off the html images preference but I don't think its making much of a difference. I want ALL images turned off, whether its coming inline text, attachments, or even an attachment I'm sending out.

Just to clarify, I don't mind having the icons showing the attachments are there, I just want to turn off all the image previewing.

I've tried googling this problem and I am totally at wits end.

thanks!

I have already turned off that preference, and while it works with HTML emails, it doesn't work with emails that just have an attachment or if I am attaching a file on an email I am sending out.

Are there any other preferences one can turn off cause I can't find it.