Index: /trunk/docs/conf.py
===================================================================
--- /trunk/docs/conf.py	(revision 202)
+++ /trunk/docs/conf.py	(revision 203)
@@ -209,5 +209,5 @@
 
 # Additional stuff for the LaTeX preamble.
-#latex_preamble = ''
+latex_preamble = '\setcounter{tocdepth}{2}'
 
 # Documents to append as an appendix to all manuals.