diff --git a/DMX-2.0/SequenceurSon.cs b/DMX-2.0/SequenceurSon.cs
index e3add42..65a5c21 100644
--- a/DMX-2.0/SequenceurSon.cs
+++ b/DMX-2.0/SequenceurSon.cs
@@ -75,7 +75,8 @@ namespace DMX2
 			}
 			set {
 				if(value>=0 && value< files.Count)
-					LoadFile(value);
+					lock(this)
+						LoadFile(value);
 			}
 		}
 
@@ -100,8 +101,7 @@ namespace DMX2
 		public TimeSpan PlayTime {
 			get{
 				if(element==null) return TimeSpan.Zero;
-				Gst.Format format = Gst.Format.Time ; 
-				long cur;
+				Gst.Format format = Gst.Format.Time ; long cur;
 				element.QueryPosition(ref format, out cur);
 				return TimeSpan.FromMilliseconds(cur/1000000);
 			}
@@ -136,7 +136,6 @@ namespace DMX2
 		public void DelFile (int pos)
 		{
 			lock (this) {
-
 				files.RemoveAt (pos);
 				CommandRemove(pos);
 			}
@@ -171,11 +170,13 @@ namespace DMX2
 
 			element.SetState(Gst.State.Playing);
 		}
+
 		public void Pause ()
 		{
 			if(element == null)return;
 			element.SetState(Gst.State.Paused);
 		}
+
 		public void Stop ()
 		{
 			if(element == null)return;
@@ -192,7 +193,6 @@ namespace DMX2
 			gsinit=true;
 			string[] args = new string[] {"--gst-disable-segtrap"};
 			Gst.Application.Init("dmx2", ref args );
-
 		}
 
 		public SequenceurSon ()
@@ -215,6 +215,7 @@ namespace DMX2
 		{
 			ui=null;
 		}
+
 		public override int ValeurCircuit (Circuit c)
 		{
 			return 0;
@@ -222,11 +223,11 @@ namespace DMX2
 
 		public override void Tick (TimeSpan time)
 		{
-			if (element != null) {
+			if (element != null && taskQueue.Count>0) {
 				if (element.CurrentState == Gst.State.Paused || element.CurrentState == Gst.State.Playing)
 				{	
 					Task t;
-					while(taskQueue.TryDequeue(out t)) t();
+					if(taskQueue.TryDequeue(out t)) t();
 				}
 			}
 			if (fading != TimeSpan.Zero) {
@@ -237,8 +238,7 @@ namespace DMX2
 				}
 				else{
 					Volume = (uint)(
-						fadeVEnd + 
-							(fadeVStart-fadeVEnd) * 
+						fadeVEnd + (fadeVStart-fadeVEnd) * 
 							fading.TotalMilliseconds / fadeLen.TotalMilliseconds);
 
 				}
@@ -310,7 +310,6 @@ namespace DMX2
 
 					}
 
-
 					if (cmd.Groups ["goto"].Success) {
 						string[] formats = new string[]{ 
 								@"m\:s\.f", @"m\:s", @"h\:m\:s",@"h\:m\:s\.f"
diff --git a/DMX-2.0/gtk-gui/DMX2.SeqSonUI.cs b/DMX-2.0/gtk-gui/DMX2.SeqSonUI.cs
index 2162ffc..19b8b7f 100644
--- a/DMX-2.0/gtk-gui/DMX2.SeqSonUI.cs
+++ b/DMX-2.0/gtk-gui/DMX2.SeqSonUI.cs
@@ -44,7 +44,7 @@ namespace DMX2
 		private global::Gtk.ScrolledWindow GtkScrolledWindow;
 		private global::Gtk.NodeView listFiles;
 		private global::Gtk.Label label1;
-		private global::Gtk.Label GtkLabel9;
+		private global::Gtk.Label titreLabel;
 		
 		protected virtual void Build ()
 		{
@@ -421,11 +421,11 @@ namespace DMX2
 			w81.Fill = false;
 			this.GtkAlignment.Add (this.vbox2);
 			this.frame1.Add (this.GtkAlignment);
-			this.GtkLabel9 = new global::Gtk.Label ();
-			this.GtkLabel9.Name = "GtkLabel9";
-			this.GtkLabel9.LabelProp = "Sequenceur Son";
-			this.GtkLabel9.UseMarkup = true;
-			this.frame1.LabelWidget = this.GtkLabel9;
+			this.titreLabel = new global::Gtk.Label ();
+			this.titreLabel.Name = "titreLabel";
+			this.titreLabel.LabelProp = "Sequenceur Son";
+			this.titreLabel.UseMarkup = true;
+			this.frame1.LabelWidget = this.titreLabel;
 			this.Add (this.frame1);
 			if ((this.Child != null)) {
 				this.Child.ShowAll ();