diff --git a/trunk/paradiseo-mo/src/moILS.h b/trunk/paradiseo-mo/src/moILS.h
index d8a4efd6f..48eac8565 100644
--- a/trunk/paradiseo-mo/src/moILS.h
+++ b/trunk/paradiseo-mo/src/moILS.h
@@ -186,7 +186,7 @@ class moILS:public moAlgo < typename M::EOType >
     while ( continu (_solution) )
       {
 	perturbation(_solution);
-	_solution.invalidate();
+	//_solution.invalidate();
 	full_evaluation(_solution);
 
 	(*algorithm)(_solution);
diff --git a/trunk/paradiseo-mo/src/moTS.h b/trunk/paradiseo-mo/src/moTS.h
index e519d4ae9..1aa5fb451 100755
--- a/trunk/paradiseo-mo/src/moTS.h
+++ b/trunk/paradiseo-mo/src/moTS.h
@@ -126,7 +126,7 @@ class moTS:public moAlgo < typename M::EOType >
     
     continu.init ();
 
-    while ( continu (_solution) )
+    do
       {
 	(*move_explorer) (_solution, new_solution);
 	
@@ -138,7 +138,7 @@ class moTS:public moAlgo < typename M::EOType >
 	
 	_solution = new_solution;
       }
-
+      while ( continu (_solution) );
 
     _solution = best_solution;