diff --git a/stepmania/src/PrefsManager.cpp b/stepmania/src/PrefsManager.cpp
index abe308b2a5..fd41758a34 100644
--- a/stepmania/src/PrefsManager.cpp
+++ b/stepmania/src/PrefsManager.cpp
@@ -238,8 +238,8 @@ void PrefsManager::Init()
 
 	m_iCenterImageTranslateX = 0;
 	m_iCenterImageTranslateY = 0;
-	m_fCenterImageScaleX = 1;
-	m_fCenterImageScaleY = 1;
+	m_fCenterImageAddWidth = 0;
+	m_fCenterImageAddHeight = 0;
 
 	m_iAttractSoundFrequency = 1;
 	m_bAllowExtraStage = true;
@@ -554,8 +554,8 @@ void PrefsManager::ReadPrefsFromFile( CString sIni )
 
 	ini.GetValue( "Options", "CenterImageTranslateX",			m_iCenterImageTranslateX );
 	ini.GetValue( "Options", "CenterImageTranslateY",			m_iCenterImageTranslateY );
-	ini.GetValue( "Options", "CenterImageScaleX",				m_fCenterImageScaleX );
-	ini.GetValue( "Options", "CenterImageScaleY",				m_fCenterImageScaleY );
+	ini.GetValue( "Options", "CenterImageAddWidth",				m_fCenterImageAddWidth );
+	ini.GetValue( "Options", "CenterImageAddHeight",			m_fCenterImageAddHeight );
 	ini.GetValue( "Options", "AttractSoundFrequency",			m_iAttractSoundFrequency );
 	ini.GetValue( "Options", "AllowExtraStage",					m_bAllowExtraStage );
 	ini.GetValue( "Options", "HideDefaultNoteSkin",				m_bHideDefaultNoteSkin );
@@ -789,8 +789,8 @@ void PrefsManager::SaveGlobalPrefsToDisk() const
 
 	ini.SetValue( "Options", "CenterImageTranslateX",			m_iCenterImageTranslateX );
 	ini.SetValue( "Options", "CenterImageTranslateY",			m_iCenterImageTranslateY );
-	ini.SetValue( "Options", "CenterImageScaleX",				m_fCenterImageScaleX );
-	ini.SetValue( "Options", "CenterImageScaleY",				m_fCenterImageScaleY );
+	ini.SetValue( "Options", "CenterImageAddWidth",				m_fCenterImageAddWidth );
+	ini.SetValue( "Options", "CenterImageAddHeight",			m_fCenterImageAddHeight );
 	ini.SetValue( "Options", "AttractSoundFrequency",			m_iAttractSoundFrequency );
 	ini.SetValue( "Options", "AllowExtraStage",					m_bAllowExtraStage );
 	ini.SetValue( "Options", "HideDefaultNoteSkin",				m_bHideDefaultNoteSkin );
diff --git a/stepmania/src/PrefsManager.h b/stepmania/src/PrefsManager.h
index a8bc991d41..3dcfe4f0d9 100644
--- a/stepmania/src/PrefsManager.h
+++ b/stepmania/src/PrefsManager.h
@@ -192,8 +192,8 @@ public:
 	bool				m_bMemoryCardsMountOnlyWhenNecessary;
 	int				m_iCenterImageTranslateX;
 	int				m_iCenterImageTranslateY;
-	float			m_fCenterImageScaleX;
-	float			m_fCenterImageScaleY;
+	int				m_fCenterImageAddWidth;
+	int				m_fCenterImageAddHeight;
 	int				m_iAttractSoundFrequency;	// 0 = never, 1 = every time
 	bool			m_bAllowExtraStage;
 	bool			m_bHideDefaultNoteSkin;
diff --git a/stepmania/src/RageDisplay.cpp b/stepmania/src/RageDisplay.cpp
index b2b2dc7b44..f80721d6af 100644
--- a/stepmania/src/RageDisplay.cpp
+++ b/stepmania/src/RageDisplay.cpp
@@ -180,7 +180,7 @@ void RageDisplay::SetDefaultRenderStates()
 	SetBlendMode( BLEND_NORMAL );
 	SetTextureFiltering( true );
 	LoadMenuPerspective(0, CENTER_X, CENTER_Y);	// 0 FOV = ortho
-	ChangeCentering(0,0,1,1);
+	ChangeCentering(0,0,0,0);
 }
 
 
@@ -632,12 +632,26 @@ RageMatrix RageDisplay::GetFrustumMatrix( float l, float r, float b, float t, fl
 	return m;
 }
 
-void RageDisplay::ChangeCentering( int trans_x, int trans_y, float scale_x, float scale_y )
+void RageDisplay::ChangeCentering( int trans_x, int trans_y, int add_width, int add_height )
 {
+	// in screen space, left edge = -1, right edge = 1, bottom edge = -1. top edge = 1
+	float fPercentShiftX = 2*trans_x/640.f;
+	float fPercentShiftY = -2*trans_y/480.f;
+	float fPercentScaleX = (640.f+add_width)/640.f;
+	float fPercentScaleY = (480.f+add_height)/480.f;
+
 	RageMatrix m1;
 	RageMatrix m2;
-	RageMatrixTranslation( &m1, float(trans_x), float(trans_y), 0 );
-	RageMatrixScaling( &m2, scale_x, scale_y, 1 );
+	RageMatrixTranslation( 
+		&m1, 
+		fPercentShiftX, 
+		fPercentShiftY, 
+		0 );
+	RageMatrixScaling( 
+		&m2, 
+		fPercentScaleX, 
+		fPercentScaleY, 
+		1 );
 	RageMatrixMultiply( &m_Centering, &m1, &m2 );
 }
 
diff --git a/stepmania/src/RageDisplay.h b/stepmania/src/RageDisplay.h
index 8186c9680c..4fb227ce4c 100644
--- a/stepmania/src/RageDisplay.h
+++ b/stepmania/src/RageDisplay.h
@@ -305,7 +305,7 @@ public:
 	void LoadLookAt( float fov, const RageVector3 &Eye, const RageVector3 &At, const RageVector3 &Up );
 
 	/* Centering matrix */
-	void ChangeCentering( int trans_x, int trans_y, float scale_x, float scale_y );
+	void ChangeCentering( int trans_x, int trans_y, int add_width, int add_height );
 
 	RageSurface *CreateSurfaceFromPixfmt( PixelFormat pixfmt, void *pixels, int width, int height, int pitch );
 	PixelFormat FindPixelFormat( int bpp, int Rmask, int Gmask, int Bmask, int Amask, bool realtime=false );
diff --git a/stepmania/src/RageDisplay_D3D.cpp b/stepmania/src/RageDisplay_D3D.cpp
index ffb805d7e2..c2bd1557a4 100644
--- a/stepmania/src/RageDisplay_D3D.cpp
+++ b/stepmania/src/RageDisplay_D3D.cpp
@@ -737,10 +737,11 @@ RageDisplay::VideoModeParams RageDisplay_D3D::GetVideoModeParams() const { retur
 
 void RageDisplay_D3D::SendCurrentMatrices()
 {
-	g_pd3dDevice->SetTransform( D3DTS_PROJECTION, (D3DMATRIX*)GetProjectionTop() );
-	RageMatrix modelView;
-	RageMatrixMultiply( &modelView, GetCentering(), GetViewTop() );
-	g_pd3dDevice->SetTransform( D3DTS_VIEW, (D3DMATRIX*)&modelView );
+	RageMatrix projection;
+	RageMatrixMultiply( &projection, GetCentering(), GetProjectionTop() );
+	g_pd3dDevice->SetTransform( D3DTS_PROJECTION, (D3DMATRIX*)&projection );
+
+	g_pd3dDevice->SetTransform( D3DTS_VIEW, (D3DMATRIX*)GetViewTop() );
 
 	/* Convert to OpenGL-style "pixel-centered" coords */
 	RageMatrix m;
diff --git a/stepmania/src/RageDisplay_OGL.cpp b/stepmania/src/RageDisplay_OGL.cpp
index b2f98f3bff..04ea3e7c87 100644
--- a/stepmania/src/RageDisplay_OGL.cpp
+++ b/stepmania/src/RageDisplay_OGL.cpp
@@ -836,14 +836,18 @@ static void SetupVertices( const RageSpriteVertex v[], int iNumVerts )
 
 void RageDisplay_OGL::SendCurrentMatrices()
 {
+	RageMatrix projection;
+	RageMatrixMultiply( &projection, GetCentering(), GetProjectionTop() );
 	glMatrixMode( GL_PROJECTION );
-	glLoadMatrixf( (const float*)GetProjectionTop() );
+	glLoadMatrixf( (const float*)&projection );
+
+	// OpenGL has just "modelView", whereas D3D has "world" and "view"
 	RageMatrix modelView;
-	RageMatrixMultiply( &modelView, GetCentering(), GetViewTop() );
-	RageMatrixMultiply( &modelView, &modelView, GetWorldTop() );
+	RageMatrixMultiply( &modelView, GetViewTop(), GetWorldTop() );
 	glMatrixMode( GL_MODELVIEW );
 	glLoadMatrixf( (const float*)&modelView );
-	glMatrixMode( GL_TEXTURE  );
+
+	glMatrixMode( GL_TEXTURE );
 	glLoadMatrixf( (const float*)GetTextureTop() );
 }
 
diff --git a/stepmania/src/ScreenCenterImage.cpp b/stepmania/src/ScreenCenterImage.cpp
index ae4b258bfd..3d8e1e1710 100644
--- a/stepmania/src/ScreenCenterImage.cpp
+++ b/stepmania/src/ScreenCenterImage.cpp
@@ -52,7 +52,7 @@ void ScreenCenterImage::Input( const DeviceInput& DeviceI, const InputEventType
 		if( DeviceI.device == DEVICE_KEYBOARD && DeviceI.button == KEY_SPACE )
 		{
 			PREFSMAN->m_iCenterImageTranslateX = PREFSMAN->m_iCenterImageTranslateY = 0;
-			PREFSMAN->m_fCenterImageScaleX = PREFSMAN->m_fCenterImageScaleY = 1;
+			PREFSMAN->m_fCenterImageAddWidth = PREFSMAN->m_fCenterImageAddHeight = 0;
 			return;
 		}
 
@@ -148,29 +148,29 @@ void ScreenCenterImage::Input( const DeviceInput& DeviceI, const InputEventType
 
 void ScreenCenterImage::Move( Axis axis, float fDelta )
 {
-	float fValues[4] =
+	int *piValues[4] =
 	{
-		(float) PREFSMAN->m_iCenterImageTranslateX,
-		(float) PREFSMAN->m_iCenterImageTranslateY,
-		PREFSMAN->m_fCenterImageScaleX,
-		PREFSMAN->m_fCenterImageScaleY
+		&PREFSMAN->m_iCenterImageTranslateX,
+		&PREFSMAN->m_iCenterImageTranslateY,
+		&PREFSMAN->m_fCenterImageAddWidth,
+		&PREFSMAN->m_fCenterImageAddHeight
 	};
 
-	if( axis == AXIS_SCALE_X || axis == AXIS_SCALE_Y )
-		fDelta *= 0.001f;
-
-	fValues[axis] += fDelta;
-
-	PREFSMAN->m_iCenterImageTranslateX = lrintf( fValues[0] );
-	PREFSMAN->m_iCenterImageTranslateY = lrintf( fValues[1] );
-	PREFSMAN->m_fCenterImageScaleX = fValues[2];
-	PREFSMAN->m_fCenterImageScaleY = fValues[3];
+	*piValues[axis] += lrintf( fDelta );
 
 	DISPLAY->ChangeCentering(
 		PREFSMAN->m_iCenterImageTranslateX, 
 		PREFSMAN->m_iCenterImageTranslateY,
-		PREFSMAN->m_fCenterImageScaleX,
-		PREFSMAN->m_fCenterImageScaleY );
+		PREFSMAN->m_fCenterImageAddWidth,
+		PREFSMAN->m_fCenterImageAddHeight );
+
+	CString sMessage = 
+		ssprintf( "Centering: x=%d, y=%d, width=%d, height=%d",
+		PREFSMAN->m_iCenterImageTranslateX, 
+		PREFSMAN->m_iCenterImageTranslateY,
+		PREFSMAN->m_fCenterImageAddWidth,
+		PREFSMAN->m_fCenterImageAddHeight );
+	SCREENMAN->SystemMessageNoAnimate( sMessage );
 }
 
 void ScreenCenterImage::Update( float fDeltaTime )
diff --git a/stepmania/src/StepMania.cpp b/stepmania/src/StepMania.cpp
index 42a5848fbb..b2af6643c1 100644
--- a/stepmania/src/StepMania.cpp
+++ b/stepmania/src/StepMania.cpp
@@ -128,8 +128,8 @@ void ApplyGraphicOptions()
 	DISPLAY->ChangeCentering(
 		PREFSMAN->m_iCenterImageTranslateX, 
 		PREFSMAN->m_iCenterImageTranslateY,
-		PREFSMAN->m_fCenterImageScaleX,
-		PREFSMAN->m_fCenterImageScaleY );
+		PREFSMAN->m_fCenterImageAddWidth,
+		PREFSMAN->m_fCenterImageAddHeight );
 
 	bNeedReload |= TEXTUREMAN->SetPrefs( 
 		RageTextureManagerPrefs( 
@@ -1066,8 +1066,8 @@ int main(int argc, char* argv[])
 	DISPLAY->ChangeCentering(
 		PREFSMAN->m_iCenterImageTranslateX, 
 		PREFSMAN->m_iCenterImageTranslateY,
-		PREFSMAN->m_fCenterImageScaleX,
-		PREFSMAN->m_fCenterImageScaleY );
+		PREFSMAN->m_fCenterImageAddWidth,
+		PREFSMAN->m_fCenterImageAddHeight );
 
 	TEXTUREMAN	= new RageTextureManager();
 	TEXTUREMAN->SetPrefs(