TEXTBROWSER not displaying rendered html

[James McDonald <james@xxxxxxxxxxxxxxxxxxx>]

Hi,

I connect to my home Linux server from work using a (windows) putty terminal.

I read my email with mutt, however when I try and view a text/html attachment 
type it opens it via /usr/bin/htmlview /tmp/mutt**** (random file name with no 
extension)

when it loads this temporary file with no extension it renders it as the html 
source.

If I rename the temp file to something.html it renders correctly when passed 
directly to  both w3m and lynx.

Is there any way to pass the mime type to w3m or lynx and get it to render the 
temporary file correctly without it having a html extension.

-- 
James McDonald
Singleton Australia