Viewing Attached Pictures in Thunderbird ?

[Jim]

Thunderbird-3.0b3pre.

When getting  pictures in Attachment, I can't view them in Thunderbird, 
have to "Save As" in home directory to view *.jpg pictures.


In the email it's showing the;

Content-Type    Application/Octet-Stream
                           name= "*.jpg "

How can I setup in Preferences to display this "Octet Stream" by  using 
Gwenview to view pictures.

These Damn Emails are probably  coming from Outlook and Thunderbird 
can't view attached pictures.