diff --git a/CLPBN/clpbn/examples/cg.yap b/CLPBN/clpbn/examples/cg.yap
index a534aa23b..04423248a 100644
--- a/CLPBN/clpbn/examples/cg.yap
+++ b/CLPBN/clpbn/examples/cg.yap
@@ -5,8 +5,6 @@
 
 :- use_module(library(clpbn)).
 
-cg(P,P1):-cg(s,1,P),cg(f,1,P1).
-
 cg(X,1,C):-
     father(Y,X),
     cg(Y,1,C1),cg(Y,2,C2),
diff --git a/library/matlab/bnt_example.yap b/library/matlab/bnt_example.yap
index 7a42d6771..fcba4bc53 100644
--- a/library/matlab/bnt_example.yap
+++ b/library/matlab/bnt_example.yap
@@ -57,9 +57,9 @@ init_bnt :-
 	matlab_on, !.
 init_bnt :-
 	getcwd(D),
-%	cd('~/Yap/CLPBN/FullBNT/BNT'),
+	cd('~/Yap/CLPBN/FullBNT/BNT'),
 	start_matlab('matlab -nojvm -nosplash'),
-%	matlab_eval_string("add_BNT_to_path",_),
+	matlab_eval_string("add_BNT_to_path",_),
 	cd(D).
 	
 mk2s(0, []) :- !.
@@ -73,7 +73,6 @@ mkdag(N,Els) :-
 	add_els(Els,N,Dag),
 	Dag=..[_|L],
 	addzeros(L),
-format("priova",[]),
 	matlab_matrix(N,N,L,dag).
 
 add_els([],_,_).
diff --git a/library/matlab/matlab.c b/library/matlab/matlab.c
index 691aeb944..40aecca06 100644
--- a/library/matlab/matlab.c
+++ b/library/matlab/matlab.c
@@ -19,8 +19,6 @@
 #include "YapInterface.h"
 #include <math.h>
 #include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
 #if defined(__MINGW32__) || _MSC_VER
 #include <windows.h>
 #endif