[NTG-context] ConTeXt and vim spell check

[Robin Kirkham]

Hi,

I'm using vim 7.0.17. When I edit a ConTeXt source file, it does the  
syntax highlighting correctly, but it won't do spelling error  
highlighting.

It works for other filetypes (including LaTeX).

Is there something extra needed in .vimrc? I have

     filetype plugin indent on
     syntax enable
     set spell spelllang=en_au

Robin