diff -r 37c16056c45b -r 70e93b0bd778 src/FingersDance.Control.Player/UserControlPlayer.xaml.cs
--- a/src/FingersDance.Control.Player/UserControlPlayer.xaml.cs	Fri Nov 13 22:11:50 2009 +0100
+++ b/src/FingersDance.Control.Player/UserControlPlayer.xaml.cs	Fri Nov 13 23:22:00 2009 +0100
@@ -106,9 +106,9 @@
 
         public void setSound(double val)
         {
-            if (((MediaElementVideo.Volume + val) < 1) && ((MediaElementVideo.Volume + val) > 0))
-                MediaElementVideo.Volume += val;
-            else if ((MediaElementVideo.Volume + val) > 1)
+            if ((val < 1) && (val > 0))
+                MediaElementVideo.Volume = val;
+            else if (val > 1)
                 MediaElementVideo.Volume = 1;
             else
                 MediaElementVideo.Volume = 0;