diff --git a/EXCLUDE/GLIMM/include/App.hpp b/EXCLUDE/GLIMM/include/App.hpp
index c7609fc37..5c9ff3efa 100644
--- a/EXCLUDE/GLIMM/include/App.hpp
+++ b/EXCLUDE/GLIMM/include/App.hpp
@@ -19,6 +19,7 @@ public:
 	virtual void On_Key_Up(int Key);
 	virtual void On_Char(unsigned int Char);
 	virtual void On_Resized(unsigned int Width, unsigned int Height);
+	virtual void On_Mouse_Button_Down(Mouse_Button Button);
 
 private:
 	void Update();
@@ -27,7 +28,7 @@ private:
 	static const int Width = 800;
 	static const int Height = 600;
 	static const int Bits_Per_Pixel = 32;
-	static const bool Fullscreen = false;
+	static const bool Fullscreen = true;
 
 	Window my_Window;
 	bool my_Done;
diff --git a/EXCLUDE/GLIMM/src/App.cpp b/EXCLUDE/GLIMM/src/App.cpp
index e3da11c45..393ac5b88 100644
--- a/EXCLUDE/GLIMM/src/App.cpp
+++ b/EXCLUDE/GLIMM/src/App.cpp
@@ -57,9 +57,6 @@ void App::On_Key_Down(int Key)
 	case VK_ESCAPE:
 		On_Close();
 		break;
-	case VK_TAB:
-		my_Window.Get_IMM().Toggle();
-		break;
 	}
 }
 
@@ -83,6 +80,16 @@ void App::On_Resized(unsigned int Width, unsigned int Height)
 	glLoadIdentity();
 }
 
+void App::On_Mouse_Button_Down(Mouse_Button Button)
+{
+	switch (Button)
+	{
+	case Mouse_Button_Left:
+		my_Window.Get_IMM().Toggle();
+		break;
+	}
+}
+
 void App::Update()
 {
 	Rotation += 0.2f;