diff --git a/DMX-2.0/DriverBoitierV1.cs b/DMX-2.0/DriverBoitierV1.cs
index 5a48b4c..a30931e 100644
--- a/DMX-2.0/DriverBoitierV1.cs
+++ b/DMX-2.0/DriverBoitierV1.cs
@@ -43,8 +43,8 @@ namespace DMX2
 		public DriverBoitierV1 (string serialport, string id): base(id)
 		{
 			portname = serialport;
-			//patch = Conduite.Courante.Patches[0];
-			//Start();
+			patch = Conduite.Courante.Patches[0];
+			Start();
 			//serial = serialport;
 			outputbuffer[0]=27;
 			outputbuffer[1]=68;
diff --git a/DMX-2.0/DriverBoitierV2.cs b/DMX-2.0/DriverBoitierV2.cs
index a9faf20..13c3804 100644
--- a/DMX-2.0/DriverBoitierV2.cs
+++ b/DMX-2.0/DriverBoitierV2.cs
@@ -113,11 +113,16 @@ namespace DMX2
 			if (serial != null) {
 				serial.Close ();
 				serial.Dispose ();
+				serial = null;
+			}
+			if (!System.IO.File.Exists (portname)) {
+				Thread.Sleep (200);
+				return;
 			}
 			serial = new SerialPort (portname, 460800, Parity.None, 8, StopBits.One);
 			//serial.DtrEnable = false;
-			serial.ReadTimeout = 200;
-			serial.WriteTimeout = 200;
+			//serial.ReadTimeout = 200;
+			//serial.WriteTimeout = 200;
 			try {
 				serial.Open ();
 				Attente(DateTime.Now.AddMilliseconds(1000));
@@ -129,8 +134,10 @@ namespace DMX2
 					etat = etatAutomate.Deconnecte;
 				}
 
-			} catch {
+			} catch (Exception ex) {
 				etat = etatAutomate.Deconnecte;
+				Console.WriteLine("DriverV2:Connection : {0}",ex);
+				Thread.Sleep (500);
 			}
 		}
 
@@ -141,7 +148,7 @@ namespace DMX2
 		bool Synchronisation ()
 		{
 			//return true;
-
+			Console.WriteLine ("DriverV2.Synchronisation()");
 
 			if (serial == null)
 				return false;
@@ -183,6 +190,7 @@ namespace DMX2
 
 		void MainLoop ()
 		{
+			DateTime t = DateTime.Now;
 			while (etat != etatAutomate.Fin) {
 				try {
 					switch (etat) {
@@ -192,6 +200,8 @@ namespace DMX2
 						break;
 					case etatAutomate.Transmission:
 						finAttente = DateTime.Now.AddMilliseconds (22);
+						Console.WriteLine(DateTime.Now-t);
+						t = DateTime.Now;
 						EnvoiTrame ();
 						Reception ();
 						Attente (finAttente);
@@ -201,17 +211,10 @@ namespace DMX2
 							EnvoieReInit();
 						break;
 					case etatAutomate.Erreur:
+						Console.WriteLine("DriverV2 : etatAutomate.Erreur");
 						compteErreur ++;
-						if (compteErreur > 3) {
-							Deconnecte ();
-							Attente (DateTime.Now.AddSeconds (2));
-						} else {
-							Attente (DateTime.Now.AddMilliseconds (250));
-							if (Synchronisation ())
-								etat = etatAutomate.Transmission;
-							else
-								compteErreur++;
-						}
+						Deconnecte ();
+						Attente (DateTime.Now.AddSeconds (2));
 						break;
 //				case etatAutomate.Parametrage:
 //					EnvoiParam();
@@ -250,12 +253,16 @@ namespace DMX2
 		void EnvoiTrame ()
 		{
 			try {
-				if(!serial.IsOpen) {
-					etat = etatAutomate.Erreur; 
-				}
 
 				if(patch1!=null)	patch1.CalculUnivers(outputbuffer,2,512);
 				if(patch2!=null)	patch2.CalculUnivers(outputbuffer,514,512);
+				if(!serial.IsOpen) {
+					etat = etatAutomate.Erreur; 
+					return;
+				}
+				while (serial.BytesToWrite > 0) 
+					Thread.Sleep(1);
+
 				serial.Write(outputbuffer,0,outputbuffer.Length);
 			} catch (Exception ex) {
 				Console.WriteLine("Exception Envoi {0}",ex);
@@ -269,7 +276,8 @@ namespace DMX2
 
 			while (serial.BytesToRead < len) {
 				Thread.Sleep (1);
-				if (++wcnt > timeout) return false;
+				if (++wcnt > timeout) 
+					return false;
 			}
 			return true;
 		}
@@ -295,6 +303,7 @@ namespace DMX2
 
 				if(!WaitForData (inputbuffer.Length)) {
 					etat = etatAutomate.Erreur;
+					Console.WriteLine("DriverV2.Reception : attente depassee");
 					return ;
 				}
 
diff --git a/DMX-2.0/SequenceurMacro.cs b/DMX-2.0/SequenceurMacro.cs
index ee2fe31..4054cec 100644
--- a/DMX-2.0/SequenceurMacro.cs
+++ b/DMX-2.0/SequenceurMacro.cs
@@ -352,7 +352,7 @@ namespace DMX2
 					enCours = lignes[index];
 
 					// Gestion de la Reprise
-					if(enCours.Circuits.Equals("R") && ligneMaitre != null)
+					if(enCours.Circuits.ToLower().Equals("r") && ligneMaitre != null)
 						enCours = ligneMaitre;
 
 					if(enCours.Nom.Length!=0)