Header levels and section numbering > 3, in LaTeX export

[Kai <k@limist.com>]

With a .org file having headers 4-5 levels deep (e.g. **** This 
Section), I'd like the LaTeX export to treat it as a subsubsubsection 
with numbering, e.g. 1.1.1.1.  But no luck, and I'm not sure whether I'm 
doing something wrong with org-mode, or need to customize my LaTeX 
template.  In the org file I have:

#+OPTIONS: H:5 num:t

...which does give the TeX markup of \label{sec-1_1_1_1} in the .tex 
file, but the header text is wrapped in a \paragraph{The Header}, 
instead of \subsubsubsection{The Header}.

Is there a way to have the org-mode LaTeX export mark that up as a 
subsubsubsection?  I'm using the org-mode trunk.  Thanks in advance for 
any help,

K