diff --git a/scripts/Window_Help.rb b/scripts/Window_Help.rb
index f09c558..a5bffa2 100644
--- a/scripts/Window_Help.rb
+++ b/scripts/Window_Help.rb
@@ -9,7 +9,7 @@ class Window_Help < Window_Base
   # * Object Initialization
   #--------------------------------------------------------------------------
   def initialize
-    super(16, 16, 608, 64)
+    super(Graphics.width / 2 - 304, 16, 608, 64)
     self.contents = Bitmap.new(width - 32, height - 32)
     Language.register_text_sprite(self.class.name + "_contents", self.contents)
     self.visible = false
diff --git a/scripts/Window_Item.rb b/scripts/Window_Item.rb
index 02682c7..59f8602 100644
--- a/scripts/Window_Item.rb
+++ b/scripts/Window_Item.rb
@@ -12,8 +12,8 @@ class Window_Item < Window_Selectable
   # * Object Initialization
   #--------------------------------------------------------------------------
   def initialize
-    super(16, 96, 608, 224)
-    @column_max = 2
+    super(Graphics.width / 2 - 304, 96, 608, 224)
+    @column_max = COLUMN_MAX
     refresh
     self.index = 0
     self.back_opacity = 230
diff --git a/scripts/Window_MainMenu.rb b/scripts/Window_MainMenu.rb
index 836d26b..95eb7ee 100644
--- a/scripts/Window_MainMenu.rb
+++ b/scripts/Window_MainMenu.rb
@@ -1,7 +1,7 @@
 # The main menu window
 class Window_MainMenu < Window_Selectable
   def initialize
-    super(16, 16, 608, 64)
+    super(Graphics.width / 2 - 304, 16, 608, 64)
 
     # Set up menu options
     @commands = Array.new
diff --git a/scripts/Window_Message.rb b/scripts/Window_Message.rb
index 97390ca..8f5b825 100644
--- a/scripts/Window_Message.rb
+++ b/scripts/Window_Message.rb
@@ -10,6 +10,7 @@ class Window_Message < Window_Selectable
   # * Object Initialization
   #--------------------------------------------------------------------------
   def initialize
+    # I would make the interface width a separate constant/setting
 	  super(Graphics.width / 2 - 304, 336, 608, 128)
     self.contents = Bitmap.new(width - 32, height - 32)
     Language.register_text_sprite(self.class.name + "_contents", self.contents)