diff --git a/DMX-2.0.userprefs b/DMX-2.0.userprefs
index 1a22cd2..1060ad9 100644
--- a/DMX-2.0.userprefs
+++ b/DMX-2.0.userprefs
@@ -1,11 +1,11 @@
 <Properties>
   <MonoDevelop.Ide.Workspace ActiveConfiguration="Debug|x86" />
-  <MonoDevelop.Ide.Workbench ActiveDocument="DMX-2.0/SequenceurLineaire.cs">
+  <MonoDevelop.Ide.Workbench ActiveDocument="DMX-2.0/Conduite.cs">
     <Files>
       <File FileName="DMX-2.0/SeqLinUI.cs" Line="127" Column="4" />
-      <File FileName="DMX-2.0/MainWindow.cs" Line="98" Column="47" />
+      <File FileName="DMX-2.0/MainWindow.cs" Line="52" Column="51" />
       <File FileName="DMX-2.0/SequenceurLineaire.cs" Line="69" Column="22" />
-      <File FileName="DMX-2.0/Conduite.cs" Line="29" Column="17" />
+      <File FileName="DMX-2.0/Conduite.cs" Line="20" Column="24" />
       <File FileName="DMX-2.0/Sequenceur.cs" Line="42" Column="4" />
     </Files>
   </MonoDevelop.Ide.Workbench>
diff --git a/DMX-2.0/Conduite.cs b/DMX-2.0/Conduite.cs
index ea10a40..4ff1739 100644
--- a/DMX-2.0/Conduite.cs
+++ b/DMX-2.0/Conduite.cs
@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Collections.ObjectModel;
+using System.Threading;
 
 
 namespace DMX2
@@ -10,10 +11,13 @@ namespace DMX2
 	{
 
 		public static Conduite Courante = null;
-			
+
+		Timer timer = null;
+
 		public Conduite()
 		{
-
+			timer = new Timer(new TimerCallback(TimerTick),this,
+			                  100,100);
 		}
 
 		List<Circuit> circuits = new List<Circuit>();
@@ -87,7 +91,26 @@ namespace DMX2
 		public void Dispose()
 		{
 			disposed=true;
-			// stop thread if running
+			if(timer!=null)
+				timer.Dispose();
+			timer=null;
+		}
+
+		static public void TimerTick (object state)
+		{
+			Conduite.Courante.Tick();
+		}
+
+		void Tick ()
+		{
+			foreach (var c in Circuits) {
+				int val=0;
+				foreach (var seq in Sequenceurs) {
+					val = Math.Max(val, seq.ValeurCircuit(c));
+				}
+				c.ValeurCourante=val;
+			}
+			MainWindow.Win.ScheduleUpdate();
 		}
 
 		#region IDisposable implementation
diff --git a/DMX-2.0/MainWindow.cs b/DMX-2.0/MainWindow.cs
index 41d2418..e5607a7 100644
--- a/DMX-2.0/MainWindow.cs
+++ b/DMX-2.0/MainWindow.cs
@@ -7,8 +7,14 @@ namespace DMX2
 {
 	public partial class MainWindow: Gtk.Window
 	{	
+		static MainWindow win;
+		public static MainWindow Win {
+			get { return win; }
+		}
+
 		public MainWindow (): base (Gtk.WindowType.Toplevel)
 		{
+			win=this;
 			Build ();
 			MajWidgets();
 		}
@@ -26,6 +32,7 @@ namespace DMX2
 			}
 		}
 
+
 		protected void MajCircuits ()
 		{
 			// Ajoute une ProgressBar par circuit, met a jour le texte si necessaire
@@ -99,5 +106,22 @@ namespace DMX2
 			seqUiVbox.ShowAll();
 		}
 
+
+		bool updScheduled=false;
+		public void ScheduleUpdate ()
+		{
+			if(updScheduled) return;
+			updScheduled=true;
+			Gtk.Application.Invoke(new EventHandler(Update));
+		}
+
+		void Update (object sender, EventArgs e)
+		{
+			foreach (var sequi in seqUiVbox.Children) {
+				(sequi as SequenceurUI).Update();
+			}
+			MajCircuits();
+			updScheduled=false;
+		}
 	}
 }
\ No newline at end of file
diff --git a/DMX-2.0/SeqLinUI.cs b/DMX-2.0/SeqLinUI.cs
index 9cbf747..e425fc7 100644
--- a/DMX-2.0/SeqLinUI.cs
+++ b/DMX-2.0/SeqLinUI.cs
@@ -113,7 +113,8 @@ namespace DMX2
 				xpos+=30;
 				if(lastKnownWidth < xpos +30)
 				{
-					xpos =10; ypos+= 215;
+					xpos = 10; 
+					ypos += 215;
 				}
 			}
 
@@ -124,12 +125,14 @@ namespace DMX2
 		{
 			VScale t = sender as VScale;
 			Circuit c = t.Data[circuitKey] as Circuit;
-
+			sequenceur.ChangeValeur(c,(int)(t.Value));
 		}
 
 		protected void UpdateValues()
 		{
-
+			foreach (Circuit c in tirettes.Keys) {
+				tirettes[c].Value = sequenceur.ValeurCircuit(c);
+			}
 		}	
 
 		protected void OnZoneWidSizeAllocated (object o, SizeAllocatedArgs args)
diff --git a/DMX-2.0/Sequenceur.cs b/DMX-2.0/Sequenceur.cs
index 788854c..435861c 100644
--- a/DMX-2.0/Sequenceur.cs
+++ b/DMX-2.0/Sequenceur.cs
@@ -43,7 +43,7 @@ namespace DMX2
 
 		public abstract SequenceurUI GetUI();
 
-		public abstract int EtatCircuit(Circuit c);
+		public abstract int ValeurCircuit(Circuit c);
 		public abstract void Tick(TimeSpan time);
 		public static Sequenceur Load(XmlElement el)
 		{
diff --git a/DMX-2.0/SequenceurLineaire.cs b/DMX-2.0/SequenceurLineaire.cs
index 215af01..c684665 100644
--- a/DMX-2.0/SequenceurLineaire.cs
+++ b/DMX-2.0/SequenceurLineaire.cs
@@ -131,14 +131,14 @@ namespace DMX2
 			}
 		}
 
-		public override int EtatCircuit (Circuit c)
+		public override int ValeurCircuit (Circuit c)
 		{
 			if (!circuitsSeq.Contains (c)) 
 				return 0;
 			return valeurscourantes [c];
 		}
 
-		public void ChangeCircuit (Circuit c, int value)
+		public void ChangeValeur (Circuit c, int value)
 		{
 			valeurschangees [c] = true;
 			valeurscourantes [c] = value;