diff --git a/Source/Compatibility/Graphics/Texture2D.cs b/Source/Compatibility/Graphics/Texture2D.cs
index 56707aaa..7bf192aa 100644
--- a/Source/Compatibility/Graphics/Texture2D.cs
+++ b/Source/Compatibility/Graphics/Texture2D.cs
@@ -1,4 +1,4 @@
-#region License
+#region License
 //
 // The Open Toolkit Library License
 //
diff --git a/Source/Examples/OpenGL/1.1/StencilCSG.cs b/Source/Examples/OpenGL/1.1/StencilCSG.cs
index b63465f0..65356af2 100644
--- a/Source/Examples/OpenGL/1.1/StencilCSG.cs
+++ b/Source/Examples/OpenGL/1.1/StencilCSG.cs
@@ -117,7 +117,7 @@ namespace Examples.Tutorial
             GL.GenTextures(1, out Texture);
             GL.BindTexture(TextureTarget.Texture2D, Texture);
 
-            BitmapData data = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
+            BitmapData data = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
             GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0, OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
             GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Linear);
             GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
diff --git a/Source/Examples/OpenGL/1.1/TextureMatrix.cs b/Source/Examples/OpenGL/1.1/TextureMatrix.cs
index 69bbe589..615c132d 100644
--- a/Source/Examples/OpenGL/1.1/TextureMatrix.cs
+++ b/Source/Examples/OpenGL/1.1/TextureMatrix.cs
@@ -120,7 +120,7 @@ namespace Examples.Tutorial
             GL.BindTexture(Target, texture);
 
             Bitmap bitmap = new Bitmap(filename);
-            BitmapData data = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
+            BitmapData data = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
                 GL.TexImage2D(Target, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0, OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
                 GL.Finish();
                 bitmap.UnlockBits(data);
diff --git a/Source/Examples/OpenGL/1.1/Textures.cs b/Source/Examples/OpenGL/1.1/Textures.cs
index 4a91a917..2fc8277c 100644
--- a/Source/Examples/OpenGL/1.1/Textures.cs
+++ b/Source/Examples/OpenGL/1.1/Textures.cs
@@ -1,4 +1,4 @@
-#region --- License ---
+#region --- License ---
 /* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
  * See license.txt for license info
  */
@@ -46,7 +46,7 @@ namespace Examples.Tutorial
             GL.GenTextures(1, out texture);
             GL.BindTexture(TextureTarget.Texture2D, texture);
 
-            BitmapData data = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height),
+            BitmapData data = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height),
                 ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
 
             GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0,
diff --git a/Source/Examples/OpenGL/GLSL/JuliaSetFractal.cs b/Source/Examples/OpenGL/GLSL/JuliaSetFractal.cs
index 235bd0c6..f31e1e5d 100644
--- a/Source/Examples/OpenGL/GLSL/JuliaSetFractal.cs
+++ b/Source/Examples/OpenGL/GLSL/JuliaSetFractal.cs
@@ -1,4 +1,4 @@
-#region --- License ---
+#region --- License ---
 /* Licensed under the MIT/X11 license.
  * Copyright (c) 2006-2008 the OpenTK Team.
  * This notice may not be removed from any source distribution.
@@ -159,7 +159,7 @@ namespace Examples.Tutorial
 
             using (Bitmap bitmap = new Bitmap("Data/Textures/JuliaColorTable.bmp"))
             {
-                BitmapData data = bitmap.LockBits(new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly,
+                BitmapData data = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly,
                                                   System.Drawing.Imaging.PixelFormat.Format24bppRgb);
                 GL.TexImage1D(TextureTarget.Texture1D, 0, PixelInternalFormat.Rgb8, data.Width, 0, OpenTK.Graphics.OpenGL.PixelFormat.Bgr,
                               PixelType.UnsignedByte, data.Scan0);
@@ -177,7 +177,7 @@ namespace Examples.Tutorial
             {
                 Bitmap bmp = new Bitmap(this.Width, this.Height);
                 System.Drawing.Imaging.BitmapData data = 
-                    bmp.LockBits(new Rectangle(0, 0, this.Width, this.Height),
+                    bmp.LockBits(new System.Drawing.Rectangle(0, 0, this.Width, this.Height),
                                  System.Drawing.Imaging.ImageLockMode.WriteOnly,
                                  System.Drawing.Imaging.PixelFormat.Format24bppRgb);
                 GL.ReadPixels(0, 0, this.Width, this.Height,
diff --git a/Source/Examples/OpenTK/Test/Extensions.cs b/Source/Examples/OpenTK/Test/Extensions.cs
index 197bfb91..6bd6d9c3 100644
--- a/Source/Examples/OpenTK/Test/Extensions.cs
+++ b/Source/Examples/OpenTK/Test/Extensions.cs
@@ -1,4 +1,4 @@
-#region --- License ---
+#region --- License ---
 /* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
  * See license.txt for license info
  */
@@ -142,7 +142,7 @@ namespace Examples.WinForms
             // Change the width of our Form to make every DataGridView column visible.
             dataGridView1.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.AllCellsExceptHeader);
             dataGridView1.Columns[1].Width = 450;
-            this.Size = dataGridView1.GetPreferredSize(new Size(2000, Height));
+            this.Size = dataGridView1.GetPreferredSize(new System.Drawing.Size(2000, Height));
         }
 
         #endregion
diff --git a/Source/Examples/OpenTK/Test/GameWindowStates.cs b/Source/Examples/OpenTK/Test/GameWindowStates.cs
index 8ca981ee..876c18c0 100644
--- a/Source/Examples/OpenTK/Test/GameWindowStates.cs
+++ b/Source/Examples/OpenTK/Test/GameWindowStates.cs
@@ -1,4 +1,4 @@
-#region --- License ---
+#region --- License ---
 /* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
  * See license.txt for license info
  */
@@ -68,7 +68,7 @@ namespace Examples.Tests
                 gfx.DrawString(String.Format("Mouse {0} window.", mouse_in_window ? "inside" : "outside of"), TextFont, Brushes.White, new PointF(0, 3 * TextFont.Height));
             }
 
-            System.Drawing.Imaging.BitmapData data = TextBitmap.LockBits(new Rectangle(0, 0, TextBitmap.Width, TextBitmap.Height),
+            System.Drawing.Imaging.BitmapData data = TextBitmap.LockBits(new System.Drawing.Rectangle(0, 0, TextBitmap.Width, TextBitmap.Height),
                 System.Drawing.Imaging.ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
             GL.TexSubImage2D(TextureTarget.Texture2D, 0, 0, 0, TextBitmap.Width, TextBitmap.Height, PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
             TextBitmap.UnlockBits(data);
diff --git a/Source/Examples/Utilities/LoaderGDI.cs b/Source/Examples/Utilities/LoaderGDI.cs
index fbda2cfb..24e190ba 100644
--- a/Source/Examples/Utilities/LoaderGDI.cs
+++ b/Source/Examples/Utilities/LoaderGDI.cs
@@ -1,4 +1,4 @@
-#region --- License ---
+#region --- License ---
 /* Licensed under the MIT/X11 license.
  * Copyright (c) 2006-2008 the OpenTK Team.
  * This notice may not be removed from any source distribution.
@@ -87,7 +87,7 @@ namespace Examples.TextureLoaders
                     throw new ArgumentException( "ERROR: Unsupported Pixel Format " + CurrentBitmap.PixelFormat );
                 }
 
-                BitmapData Data = CurrentBitmap.LockBits( new Rectangle( 0, 0, CurrentBitmap.Width, CurrentBitmap.Height ), ImageLockMode.ReadOnly, CurrentBitmap.PixelFormat );
+                BitmapData Data = CurrentBitmap.LockBits( new System.Drawing.Rectangle( 0, 0, CurrentBitmap.Width, CurrentBitmap.Height ), ImageLockMode.ReadOnly, CurrentBitmap.PixelFormat );
 
                 if ( Data.Height > 1 )
                 { // image is 2D