diff --git a/Source/Examples/OpenGL/1.1/Picking.cs b/Source/Examples/OpenGL/1.1/Picking.cs
index f650494b..123a7b5a 100644
--- a/Source/Examples/OpenGL/1.1/Picking.cs
+++ b/Source/Examples/OpenGL/1.1/Picking.cs
@@ -209,7 +209,7 @@ namespace Examples.Tutorial
         {
             GL.Viewport(ClientRectangle);
 
-            Matrix4 projection = Matrix4.Perspective(45.0f, this.Width / (float)this.Height, 0.1f, 10.0f);
+            Matrix4 projection = Matrix4.CreatePerspectiveFieldOfView(MathHelper.PiOver4, this.Width / (float)this.Height, 0.1f, 10.0f);
             GL.MatrixMode(MatrixMode.Projection);
             GL.LoadMatrix(ref projection);
         }
diff --git a/Source/Examples/OpenGL/1.1/StencilCSG.cs b/Source/Examples/OpenGL/1.1/StencilCSG.cs
index 65356af2..f3e388f7 100644
--- a/Source/Examples/OpenGL/1.1/StencilCSG.cs
+++ b/Source/Examples/OpenGL/1.1/StencilCSG.cs
@@ -31,20 +31,28 @@ namespace Examples.Tutorial
         float CameraZoom;
         float CameraRotX;
         float CameraRotY;
-        Vector3 EyePosition = new Vector3( 0f, 0f, 5f );
+        Vector3 EyePosition = new Vector3( 0f, 0f, 15f );
 
         #region Window
         public StencilCSG()
             : base( 800, 600, new GraphicsMode( new ColorFormat( 8, 8, 8, 8 ), 24, 8 ) ) // request 8-bit stencil buffer
         {
             base.VSync = VSyncMode.Off;
+            Keyboard.KeyDown += delegate(object sender, KeyboardKeyEventArgs e)
+            {
+                switch (e.Key)
+                {
+                    case Key.Escape: this.Exit(); break;
+                    case Key.Space: ShowDebugWireFrame = !ShowDebugWireFrame; break;
+                }
+            };
         }
 
         protected override void OnResize(EventArgs e )
         {
             GL.Viewport( 0, 0, Width, Height );
             GL.MatrixMode( MatrixMode.Projection );
-            Matrix4 p= Matrix4.Perspective( 45f, Width / (float)Height, 0.1f, 15.0f);
+            Matrix4 p = Matrix4.CreatePerspectiveFieldOfView(MathHelper.PiOver4, Width / (float)Height, 0.1f, 64.0f);
             GL.LoadMatrix(ref p);
         }
         #endregion Window
@@ -142,7 +150,7 @@ namespace Examples.Tutorial
 
             for (int i = 0; i < tempVertices.Length; i++)
             {
-                tempVertices[i].Normal.Mult(-1.0);
+                tempVertices[i].Normal *= -1.0;
                 tempVertices[i].Normal.Normalize();
             }
 
@@ -162,17 +170,6 @@ namespace Examples.Tutorial
 
         protected override void OnUpdateFrame( FrameEventArgs e )
         {
-
-            if (Keyboard[OpenTK.Input.Key.Escape])
-            {
-                this.Exit();
-            }
-
-            if (Keyboard[Key.Space])
-            {
-                ShowDebugWireFrame = !ShowDebugWireFrame;
-            }
-
             #region Magic numbers for camera
             CameraRotX = -Mouse.X * .5f;
             CameraRotY = Mouse.Y * .5f;
@@ -260,7 +257,7 @@ namespace Examples.Tutorial
 
         protected override void OnRenderFrame( FrameEventArgs e )
         {
-            this.Title = WindowTitle + "  fps: " + ( 1f / e.Time );
+            this.Title = WindowTitle + "  fps: " + ( 1f / e.Time ).ToString("0.");
 
             MySphereZOffset += (float)( e.Time * 3.1 );
             MySphereXOffset += (float)( e.Time * 4.2 );
@@ -284,9 +281,10 @@ namespace Examples.Tutorial
 
             if ( ShowDebugWireFrame )
             {
+                GL.Color3(System.Drawing.Color.LightGray);
                 GL.Disable( EnableCap.StencilTest );
                 GL.Disable( EnableCap.Lighting );
-                GL.Disable( EnableCap.DepthTest );
+                //GL.Disable( EnableCap.DepthTest );
                 GL.PolygonMode( MaterialFace.Front, PolygonMode.Line );
                 DrawOperandB();
                 GL.PolygonMode( MaterialFace.Front, PolygonMode.Fill );
diff --git a/Source/Examples/OpenGL/1.1/TextureMatrix.cs b/Source/Examples/OpenGL/1.1/TextureMatrix.cs
index 615c132d..950a5559 100644
--- a/Source/Examples/OpenGL/1.1/TextureMatrix.cs
+++ b/Source/Examples/OpenGL/1.1/TextureMatrix.cs
@@ -78,7 +78,7 @@ namespace Examples.Tutorial
         {
             GL.Viewport(this.ClientRectangle);
 
-            Matrix4 projection = Matrix4.Perspective(45.0f, Width / (float)Height, 1.0f, 50.0f);
+            Matrix4 projection = Matrix4.CreatePerspectiveFieldOfView(MathHelper.PiOver4, Width / (float)Height, 1.0f, 50.0f);
             GL.MatrixMode(MatrixMode.Projection);
             GL.LoadMatrix(ref projection);
         }
diff --git a/Source/Examples/OpenGL/GLSL/DDSCubeMap.cs b/Source/Examples/OpenGL/GLSL/DDSCubeMap.cs
index 77ca65d6..2ae44c36 100644
--- a/Source/Examples/OpenGL/GLSL/DDSCubeMap.cs
+++ b/Source/Examples/OpenGL/GLSL/DDSCubeMap.cs
@@ -49,7 +49,7 @@ namespace Examples.Tutorial
         DrawableShape sphere;
 
         // Camera
-        Vector3 EyePos = new Vector3( 0.0f, 0.0f, 3.0f );
+        Vector3 EyePos = new Vector3( 0.0f, 0.0f, 6.0f );
         Vector3 Trackball = Vector3.Zero;
 
         #endregion internal Fields
@@ -60,22 +60,19 @@ namespace Examples.Tutorial
         {
             this.VSync = VSyncMode.Off;
 
-            /*
             // Check for necessary capabilities:
-            if ( !GL.SupportsExtension( "VERSION_2_0" ) )
+            string extensions = GL.GetString(StringName.Extensions);
+            if (!GL.GetString(StringName.Extensions).Contains("GL_ARB_shading_language"))
             {
-                MessageBox.Show( "You need at least OpenGL 2.0 to run this example. Aborting.",
-                                 "GLSL not supported", MessageBoxButtons.OK, MessageBoxIcon.Exclamation );
-                this.Exit( );
+                throw new NotSupportedException(String.Format("This example requires OpenGL 2.0. Found {0}. Aborting.",
+                    GL.GetString(StringName.Version).Substring(0, 3)));
             }
 
-            if ( !GL.SupportsExtension( "GL_ARB_texture_compression" ) ||
-                 !GL.SupportsExtension( "GL_EXT_texture_compression_s3tc" ) )
+            if (!extensions.Contains("GL_ARB_texture_compression") ||
+                 !extensions.Contains("GL_EXT_texture_compression_s3tc"))
             {
-                MessageBox.Show( "Texture compression extensions not found. Trying to run anyways.",
-                                 "Possible problem", MessageBoxButtons.OK, MessageBoxIcon.Warning );
+                throw new NotSupportedException("This example requires support for texture compression. Aborting.");
             }
-            */
 
             #region GL State
 
@@ -193,7 +190,7 @@ namespace Examples.Tutorial
             GL.Viewport( 0, 0, Width, Height );
 
             GL.MatrixMode( MatrixMode.Projection );
-            Matrix4 p = Matrix4.Perspective( 45.0f, Width / (float) Height, 0.1f, 10.0f );
+            Matrix4 p = Matrix4.CreatePerspectiveFieldOfView(MathHelper.PiOver4, Width / (float)Height, 0.1f, 10.0f);
             GL.LoadMatrix(ref p);
 
             GL.MatrixMode( MatrixMode.Modelview );
@@ -225,7 +222,7 @@ namespace Examples.Tutorial
         /// <remarks>There is no need to call the base implementation.</remarks>
        protected override void OnRenderFrame(FrameEventArgs e)
        {
-           this.Title = "FPS: " + 1 / e.Time;
+           this.Title = "FPS: " + (1 / e.Time).ToString("0.");
 
            GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
 
diff --git a/Source/Examples/OpenGL/GLSL/SwizzledParallax.cs b/Source/Examples/OpenGL/GLSL/SwizzledParallax.cs
index 214d5e09..bf61f260 100644
--- a/Source/Examples/OpenGL/GLSL/SwizzledParallax.cs
+++ b/Source/Examples/OpenGL/GLSL/SwizzledParallax.cs
@@ -219,7 +219,7 @@ namespace Examples.Tutorial
             GL.Viewport( 0, 0, Width, Height );
 
             GL.MatrixMode( MatrixMode.Projection );
-            Matrix4 p = Matrix4.Perspective( 45.0f, Width / (float) Height, 0.1f, 100.0f );
+            Matrix4 p = Matrix4.CreatePerspectiveFieldOfView(MathHelper.PiOver4, Width / (float)Height, 0.1f, 100.0f);
             GL.LoadMatrix(ref p);
 
             GL.MatrixMode( MatrixMode.Modelview );
@@ -281,7 +281,7 @@ namespace Examples.Tutorial
         /// <remarks>There is no need to call the base implementation.</remarks>
        protected override void OnRenderFrame( FrameEventArgs e )
         {
-            this.Title = "FPS: " + 1 / e.Time;
+            this.Title = "FPS: " + (1 / e.Time).ToString("0.");
 
             GL.Clear( ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit );
 
diff --git a/Source/Examples/Shapes/Helpers/TetrahedronFace.cs b/Source/Examples/Shapes/Helpers/TetrahedronFace.cs
index 3a95bdba..c312a1cd 100644
--- a/Source/Examples/Shapes/Helpers/TetrahedronFace.cs
+++ b/Source/Examples/Shapes/Helpers/TetrahedronFace.cs
@@ -37,15 +37,15 @@ namespace Examples.Shapes
             // find the 3 points AB, BC, CA 
             Vector3d CenterAB;
             Vector3d.Add( ref this.APosition, ref this.BPosition, out temp );
-            Vector3d.Mult( ref temp, 0.5f, out CenterAB );
+            Vector3d.Multiply( ref temp, 0.5f, out CenterAB );
 
             Vector3d CenterBC;
             Vector3d.Add( ref this.BPosition, ref this.CPosition, out temp );
-            Vector3d.Mult( ref temp, 0.5f, out CenterBC );
+            Vector3d.Multiply( ref temp, 0.5f, out CenterBC );
 
             Vector3d CenterCA;
             Vector3d.Add( ref this.CPosition, ref this.APosition, out temp );
-            Vector3d.Mult( ref temp, 0.5f, out CenterCA );
+            Vector3d.Multiply( ref temp, 0.5f, out CenterCA );
 
             // find the 3 points AD, BD, CD 
             Vector3d CenterAD;
@@ -93,21 +93,21 @@ namespace Examples.Shapes
             Vector3d.Lerp( ref this.BPosition, ref this.CPosition, 0.5, out CenterBC );
             Vector3d.Lerp( ref this.CPosition, ref this.APosition, 0.5, out CenterCA );
             CenterD = CenterAB;
-            CenterD.Add( ref CenterBC );
-            CenterD.Add( ref CenterCA );
-            CenterD.Div( 3.0 );
+            Vector3d.Add(ref CenterD, ref CenterBC, out CenterD);
+            Vector3d.Add(ref CenterD, ref CenterCA, out CenterD);
+            CenterD /= 3.0;
             Vector3d E = CenterD + ( this.Normal * 0.5 );
             Vector3d temp = this.Normal;
-            temp.Mult( height );
-            CenterD.Add( temp );
+            temp *= height;
+            Vector3d.Add(ref CenterD, ref temp, out CenterD);
 
             Vector2d.Lerp( ref this.ATexCoord, ref this.BTexCoord, 0.5, out TexCoordAB );
             Vector2d.Lerp( ref this.BTexCoord, ref this.CTexCoord, 0.5, out TexCoordBC );
             Vector2d.Lerp( ref this.CTexCoord, ref this.ATexCoord, 0.5, out TexCoordCA );
             TexCoordD = TexCoordAB;
-            TexCoordD.Add( ref TexCoordBC );
-            TexCoordD.Add( ref TexCoordCA );
-            TexCoordD.Div( 3.0 );
+            Vector2d.Add(ref TexCoordD, ref TexCoordBC, out TexCoordD);
+            Vector2d.Add(ref TexCoordD, ref TexCoordCA, out TexCoordD);
+            TexCoordD /= 3.0;
             #region 1
             first.APosition = this.APosition;
             first.ATexCoord = this.ATexCoord;
@@ -120,8 +120,8 @@ namespace Examples.Shapes
 
             first.Normal = this.Normal;
             temp = ( this.APosition + CenterAB + CenterCA );
-            temp.Div( 3.0 );
-            temp.Add( this.Normal * -1.0 );
+            temp /= 3.0;
+            temp += this.Normal * -1.0;
             first.DPosition = temp;
             #endregion 1
             #region 2
@@ -137,8 +137,8 @@ namespace Examples.Shapes
             second.Normal = this.Normal;
 
             temp = CenterAB + this.BPosition + CenterBC;
-            temp.Div( 3.0 );
-            temp.Add( this.Normal * -1.0 );
+            temp /=  3.0;
+            temp += this.Normal * -1.0;
             second.DPosition = temp;
 
             #endregion 2
@@ -154,8 +154,8 @@ namespace Examples.Shapes
 
             third.Normal = this.Normal;
             temp = CenterBC + this.CPosition + CenterCA;
-            temp.Div( 3.0 );
-            temp.Add( this.Normal * -1.0 );
+            temp /= 3.0;
+            temp += this.Normal * -1.0;
             third.DPosition = temp;
             #endregion 3
             #region 4
diff --git a/Source/Examples/Shapes/Old/SierpinskiTetrahedron.cs b/Source/Examples/Shapes/Old/SierpinskiTetrahedron.cs
index 2e6aa219..158298cc 100644
--- a/Source/Examples/Shapes/Old/SierpinskiTetrahedron.cs
+++ b/Source/Examples/Shapes/Old/SierpinskiTetrahedron.cs
@@ -148,24 +148,24 @@ namespace Examples.Shapes
         {
             Vector3d temp1, temp2, temp3;
 
-            Vector3d.Sub( ref A, ref D, out temp1 );
-            Vector3d.Sub( ref B, ref D, out temp2 );
-            Vector3d.Sub( ref C, ref D, out temp3 );
+            Vector3d.Subtract( ref A, ref D, out temp1 );
+            Vector3d.Subtract( ref B, ref D, out temp2 );
+            Vector3d.Subtract( ref C, ref D, out temp3 );
 
             Vector3d.Add( ref temp1, ref temp2, out result );
-            result.Add( ref temp3 );
+            Vector3d.Add(ref result, ref temp3, out result);
             result.Normalize();
         }
 
         internal static void FindNormal( ref Vector3d A, ref Vector3d B, ref Vector3d C, out Vector3d result )
         {
             Vector3d temp1, temp2;
-            Vector3d.Sub( ref A, ref B, out temp1 );
+            Vector3d.Subtract( ref A, ref B, out temp1 );
             temp1.Normalize();
-            Vector3d.Sub( ref C, ref B, out temp2 );
+            Vector3d.Subtract(ref C, ref B, out temp2);
             temp2.Normalize();
             Vector3d.Cross( ref temp1, ref temp2, out result );
-            result.Mult( -1.0 );
+            result *=  -1.0;
             result.Normalize();
         }
 
diff --git a/Source/Examples/Shapes/SlicedHose.cs b/Source/Examples/Shapes/SlicedHose.cs
index 7cff0c49..b3411ecd 100644
--- a/Source/Examples/Shapes/SlicedHose.cs
+++ b/Source/Examples/Shapes/SlicedHose.cs
@@ -133,7 +133,7 @@ namespace Examples.Shapes
                 Slerp( ref start, ref end, Multiplier, out temp[i].Normal );
                 temp[i].Normal.Normalize();
                 temp[i].Position = temp[i].Normal;
-                temp[i].Position.Mult( scale );
+                temp[i].Position *= scale;
             }
 
             VertexArray = new VertexT2dN3dV3d[temp.Length * 2];
@@ -184,8 +184,8 @@ namespace Examples.Shapes
         double t2 = System.Math.Sin( ( 1.0 - factor ) * theta ) * temp;
         double t3 = System.Math.Sin( factor * theta ) * temp;
 
-        Vector3d v1 = Vector3d.Mult( a, t2);
-        Vector3d v2 = Vector3d.Mult( b, t3 );
+        Vector3d v1 = Vector3d.Multiply( a, t2);
+        Vector3d v2 = Vector3d.Multiply( b, t3 );
         result = Vector3d.Add( v1, v2 );
     }
 
diff --git a/Source/Examples/Shapes/SlicedSphere.cs b/Source/Examples/Shapes/SlicedSphere.cs
index 732c7831..23ea573e 100644
--- a/Source/Examples/Shapes/SlicedSphere.cs
+++ b/Source/Examples/Shapes/SlicedSphere.cs
@@ -93,7 +93,7 @@ namespace Examples.Shapes
 
             for (int i=0; i<VertexArray.Length;i++)
             {
-            VertexArray[i].Position.Add( ref offset );
+                Vector3d.Add(ref VertexArray[i].Position, ref offset, out VertexArray[i].Position);
             }
         }
 
diff --git a/Source/Examples/Shapes/TorusKnot.cs b/Source/Examples/Shapes/TorusKnot.cs
index 6da851b2..7fab5c63 100644
--- a/Source/Examples/Shapes/TorusKnot.cs
+++ b/Source/Examples/Shapes/TorusKnot.cs
@@ -44,12 +44,12 @@ namespace Examples.Shapes
             #region Find the Torus length
             Vector3d result;
             double[] Lengths = new double[pathsteps];
-            Vector3d.Sub( ref PathPositions[pathsteps - 1], ref PathPositions[0], out result );
+            Vector3d.Subtract( ref PathPositions[pathsteps - 1], ref PathPositions[0], out result );
             Lengths[0] = result.Length;
             double TotalLength = result.Length;
             for ( int i = 1; i < pathsteps; i++ ) // skipping 
             {
-                Vector3d.Sub( ref PathPositions[i - 1], ref PathPositions[i], out result );
+                Vector3d.Subtract( ref PathPositions[i - 1], ref PathPositions[i], out result );
                 Lengths[i] = result.Length;
                 TotalLength += result.Length;
             }
@@ -72,12 +72,12 @@ namespace Examples.Shapes
                 else
                     last = PathPositions[i - 1];
 
-                Vector3d.Sub( ref next, ref last, out tangent ); // Guesstimate tangent
+                Vector3d.Subtract( ref next, ref last, out tangent ); // Guesstimate tangent
                 tangent.Normalize();
 
                 Vector3d.Add( ref next, ref last, out normal ); // Approximate N
                 normal.Normalize();
-                Vector3d.Mult( ref normal, radius, out normal );// scale the shape to desired radius
+                Vector3d.Multiply( ref normal, radius, out normal );// scale the shape to desired radius
 
                 for ( uint j = 0; j < shapevertices; j++ )
                 {
@@ -88,7 +88,7 @@ namespace Examples.Shapes
                     Vector3d point = Vector3d.TransformVector( normal, RotationMatrix );
                     Vector3d.Add( ref PathPositions[i], ref point, out VertexArray[index].Position );
                     // Since the used shape is a circle, the Vertex normal's heading is easy to find
-                    Vector3d.Sub( ref VertexArray[index].Position, ref PathPositions[i], out VertexArray[index].Normal );
+                    Vector3d.Subtract( ref VertexArray[index].Position, ref PathPositions[i], out VertexArray[index].Normal );
                     VertexArray[index].Normal.Normalize();
                     // just generate some semi-useful UVs to fill blanks
                     VertexArray[index].TexCoord = new Vector2d( (double)( i / TotalLength/ TexCount  ), j / ( shapevertices - 1.0 ) );