--- a/doc/main.txt	Fri Mar 30 11:08:47 2007 +0200
+++ b/doc/main.txt	Fri Mar 30 12:37:02 2007 +0200
@@ -55,6 +55,6 @@
  * ns3 namespace.
  */
 /**
- * \defgroup constants
+ * \defgroup constants Constants
  * \brief Constants you can change
  */
\ No newline at end of file

--- a/src/core/assert.h	Fri Mar 30 11:08:47 2007 +0200
+++ b/src/core/assert.h	Fri Mar 30 12:37:02 2007 +0200
@@ -22,7 +22,7 @@
 #define ASSERT_H
 
 /**
- * \defgroup assert
+ * \defgroup assert Assert
  * \brief assert functions and macros
  *
  * The assert macros are used to verify

--- a/src/core/callback.h	Fri Mar 30 11:08:47 2007 +0200
+++ b/src/core/callback.h	Fri Mar 30 12:37:02 2007 +0200
@@ -458,6 +458,7 @@
 }
 /**
  * \ingroup MakeCallback
+ * \overload Callback<R> MakeNullCallback (void)
  * \return a wrapper Callback
  * Build a null callback which takes one argument
  * and potentially return a value.
@@ -468,6 +469,7 @@
 }
 /**
  * \ingroup MakeCallback
+ * \overload Callback<R> MakeNullCallback (void)
  * \return a wrapper Callback
  * Build a null callback which takes two arguments
  * and potentially return a value.
@@ -478,6 +480,7 @@
 }
 /**
  * \ingroup MakeCallback
+ * \overload Callback<R> MakeNullCallback (void)
  * \return a wrapper Callback
  * Build a null callback which takes three arguments
  * and potentially return a value.
@@ -488,6 +491,7 @@
 }
 /**
  * \ingroup MakeCallback
+ * \overload Callback<R> MakeNullCallback (void)
  * \return a wrapper Callback
  * Build a null callback which takes four arguments
  * and potentially return a value.
@@ -498,6 +502,7 @@
 }
 /**
  * \ingroup MakeCallback
+ * \overload Callback<R> MakeNullCallback (void)
  * \return a wrapper Callback
  * Build a null callback which takes five arguments
  * and potentially return a value.

--- a/src/core/debug.h	Fri Mar 30 11:08:47 2007 +0200
+++ b/src/core/debug.h	Fri Mar 30 12:37:02 2007 +0200
@@ -22,7 +22,7 @@
 #define DEBUG_H
 
 /**
- * \defgroup debugging
+ * \defgroup debugging Debugging
  * \brief Debugging functions and macros
  *
  *   - DEBUG functionality: macros which allow developers to