--- a/doc/tutorial/introduction.texi	Mon Jun 30 13:06:34 2008 -0700
+++ b/doc/tutorial/introduction.texi	Mon Jun 30 13:16:31 2008 -0700
@@ -223,8 +223,6 @@
 book or web site and work through at least the basic features of the language
 before proceeding.
 
-@subsection Environment
-
 @cindex toolchain
 @cindex GNU
 The @command{ns-3} system uses the GNU ``toolchain'' for development.  A 

--- a/doc/tutorial/tweaking.texi	Mon Jun 30 13:06:34 2008 -0700
+++ b/doc/tutorial/tweaking.texi	Mon Jun 30 13:16:31 2008 -0700
@@ -86,7 +86,7 @@
 example script you have already built.
 
 @node Enabling Logging
-@subsection Enabling Logging Using the NS_LOG Environment Variable
+@subsection Enabling Logging
 @cindex NS_LOG
 Let's use the NS_LOG environment variable to turn on some more logging, but
 to get our bearings, go ahead and run the script just as you did previously,