diff --git a/Source/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs b/Source/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs
index 4ae61ca9..45975680 100644
--- a/Source/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs
+++ b/Source/OpenTK/Platform/MacOS/CarbonBindings/CarbonAPI.cs
@@ -99,6 +99,14 @@ namespace OpenTK.Platform.MacOS.Carbon
     {
         public float X;
         public float Y;
+        public HIPoint(float x, float y)
+        {
+            X = x;
+            Y = y;
+        }
+        public HIPoint(double x, double y)
+            : this((float)x, (float)y)
+        { }
     }
     [StructLayout(LayoutKind.Sequential)]
     internal struct HISize
diff --git a/Source/OpenTK/Platform/MacOS/CarbonBindings/QuartzDisplayServicesAPI.cs b/Source/OpenTK/Platform/MacOS/CarbonBindings/QuartzDisplayServicesAPI.cs
index d241a3d6..f15d1a20 100644
--- a/Source/OpenTK/Platform/MacOS/CarbonBindings/QuartzDisplayServicesAPI.cs
+++ b/Source/OpenTK/Platform/MacOS/CarbonBindings/QuartzDisplayServicesAPI.cs
@@ -12,6 +12,21 @@ namespace OpenTK.Platform.MacOS.Carbon
 
     }
 
+    enum CGError
+    {
+        Success = 0,
+        Failure = 1000,
+        IllegalArgument = 1001,
+        InvalidConnection = 1002,
+        InvalidContext = 1003,
+        CannotComplete = 1004,
+        NotImplemented = 1006,
+        RangeCheck = 1007,
+        TypeCheck = 1008,
+        InvalidOperation = 1010,
+        NoneAvailable = 1011,
+    }
+
     internal static class CG
     {
         const string appServices = "/System/Library/Frameworks/ApplicationServices.framework/Versions/Current/ApplicationServices";
@@ -50,5 +65,7 @@ namespace OpenTK.Platform.MacOS.Carbon
         [DllImport(appServices, EntryPoint = "CGDisplaySwitchToMode")]
         internal static extern IntPtr DisplaySwitchToMode(IntPtr display, IntPtr displayMode);
 
+        [DllImport(appServices, EntryPoint = "CGWarpMouseCursorPosition")]
+        internal static extern CGError WarpMouseCursorPosition(HIPoint newCursorPosition);
     }
 }
diff --git a/Source/OpenTK/Platform/MacOS/HIDInput.cs b/Source/OpenTK/Platform/MacOS/HIDInput.cs
index dabcc218..af160203 100755
--- a/Source/OpenTK/Platform/MacOS/HIDInput.cs
+++ b/Source/OpenTK/Platform/MacOS/HIDInput.cs
@@ -48,6 +48,8 @@ namespace OpenTK.Platform.MacOS
     using IOOptionBits = System.IntPtr;
     using IOReturn = System.IntPtr;
 
+    // Requires Mac OS X 10.5 or higher.
+    // Todo: create a driver for older installations. Maybe use CGGetLastMouseDelta for that?
     class HIDInput : IMouseDriver2
     {
         #region Fields
@@ -195,7 +197,7 @@ namespace OpenTK.Platform.MacOS
 
         #region IMouseDriver2 Members
 
-        public MouseState GetState()
+        MouseState IMouseDriver2.GetState()
         {
             MouseState master = new MouseState();
             foreach (KeyValuePair<IntPtr, MouseState> item in MouseDevices)
@@ -206,7 +208,7 @@ namespace OpenTK.Platform.MacOS
             return master;
         }
 
-        public MouseState GetState(int index)
+        MouseState IMouseDriver2.GetState(int index)
         {
             IntPtr device;
             if (MouseIndexToDevice.TryGetValue(index, out device))
@@ -217,8 +219,9 @@ namespace OpenTK.Platform.MacOS
             return new MouseState();
         }
 
-        public void SetPosition(double x, double y)
+        void IMouseDriver2.SetPosition(double x, double y)
         {
+            CG.WarpMouseCursorPosition(new Carbon.HIPoint(x, y));
         }
 
         #endregion