[Camino] A Question Regarding Downloading Attachments and Extensions

When receiving web-based mail (specifically Novell WebAccess) with  
Camino, I cannot get .doc attachments to keep their extension even  
though they are saved as .doc and appear that way in the mail  
message.  When I download the .doc attachment, it then appears on my  
desktop minus the extension and opens (as a default?) with Excel.

-This is peculiar only to Camino because Safari downloads the same  
item as it is supposed to be, a .doc.

-There is nothing in Camino's download preferences that covers this  
issue.  Yes, I can "open with" and choose the application I want, but  
why doesn't Camino allow the attachment to retain its extension?

-I did not see a bug report on this, but wanted to ask here first  
anyway.   Any answers?

Thank you.    Denise K.