diff --git a/GpApp/MainWindow.cpp b/GpApp/MainWindow.cpp
index 4398b01..6fb77ea 100644
--- a/GpApp/MainWindow.cpp
+++ b/GpApp/MainWindow.cpp
@@ -11,7 +11,9 @@
 #include "Externs.h"
 #include "Environ.h"
 #include "FontFamily.h"
+#include "HostDisplayDriver.h"
 #include "House.h"
+#include "IGpDisplayDriver.h"
 #include "InputManager.h"
 #include "MenuManager.h"
 #include "QDPixMap.h"
@@ -181,6 +183,8 @@ void OpenMainWindow (void)
 	
 	if (theMode == kEditMode)
 	{
+		PortabilityLayer::HostDisplayDriver::GetInstance()->SetBackgroundColor(51, 51, 102, 255);
+
 		QSetRect(&mainWindowRect, 0, 0, 512, 322);
 		mainWindow = GetNewCWindow(kEditWindowID, nil, kPutInFront);
 		SizeWindow(mainWindow, mainWindowRect.right, 
@@ -206,6 +210,12 @@ void OpenMainWindow (void)
 	}
 	else
 	{
+#ifdef NDEBUG
+		PortabilityLayer::HostDisplayDriver::GetInstance()->SetBackgroundColor(0, 0, 0, 255);
+#else
+		PortabilityLayer::HostDisplayDriver::GetInstance()->SetBackgroundColor(51, 0, 0, 255);
+#endif
+
 		if (boardWindow == nil)
 		{
 			PortabilityLayer::WindowManager *windowManager = PortabilityLayer::WindowManager::GetInstance();
@@ -222,12 +232,16 @@ void OpenMainWindow (void)
 		}
 		mainWindowRect = thisMac.constrainedScreen;
 		ZeroRectCorner(&mainWindowRect);
-		mainWindowRect.bottom -= 20;		// thisMac.menuHigh
+		mainWindowRect.bottom -= kScoreboardTall;		// thisMac.menuHigh
 		mainWindow = GetNewCWindow(kMainWindowID, nil, kPutInFront);
 		SizeWindow(mainWindow, mainWindowRect.right - mainWindowRect.left, 
 				mainWindowRect.bottom - mainWindowRect.top, false);
-		MoveWindow(mainWindow, thisMac.constrainedScreen.left,
-				thisMac.constrainedScreen.top + 20, true);	// thisMac.menuHigh
+
+		const short mainWindowLeft = (thisMac.fullScreen.left + thisMac.fullScreen.right + thisMac.constrainedScreen.left - thisMac.constrainedScreen.right) / 2;
+		const short mainWindowTop = (thisMac.fullScreen.top + thisMac.fullScreen.bottom + thisMac.constrainedScreen.top - thisMac.constrainedScreen.bottom) / 2 + kScoreboardTall;
+
+		MoveWindow(boardWindow, mainWindowLeft, 0, true);
+		MoveWindow(mainWindow, mainWindowLeft, mainWindowTop, true);	// thisMac.menuHigh
 		ShowWindow(mainWindow);
 		SetPortWindowPort(mainWindow);
 
@@ -247,7 +261,6 @@ void OpenMainWindow (void)
 			splashOriginV = 0;
 		
 		workSrcMap->FillRect(workSrcRect);
-		LoadGraphic(workSrcMap, kSplash8BitPICT);
 		
 //		if ((fadeGraysOut) && (isDoColorFade))
 //		{
@@ -260,6 +273,7 @@ void OpenMainWindow (void)
 //		}
 		
 		SetPortWindowPort(mainWindow);
+		UpdateMainWindow();
 	}
 
 	CopyBits((BitMap *)*GetGWorldPixMap(workSrcMap),
diff --git a/GpCommon/IGpDisplayDriver.h b/GpCommon/IGpDisplayDriver.h
index a975ce6..98474cb 100644
--- a/GpCommon/IGpDisplayDriver.h
+++ b/GpCommon/IGpDisplayDriver.h
@@ -23,4 +23,6 @@ public:
 	virtual void SetStandardCursor(EGpStandardCursor_t standardCursor) = 0;
 
 	virtual void UpdatePalette(const void *paletteData) = 0;
+
+	virtual void SetBackgroundColor(uint8_t r, uint8_t g, uint8_t b, uint8_t a) = 0;
 };
diff --git a/GpDisplayDriver_D3D11/GpDisplayDriverD3D11.cpp b/GpDisplayDriver_D3D11/GpDisplayDriverD3D11.cpp
index 6225d42..86e86c1 100644
--- a/GpDisplayDriver_D3D11/GpDisplayDriverD3D11.cpp
+++ b/GpDisplayDriver_D3D11/GpDisplayDriverD3D11.cpp
@@ -399,9 +399,7 @@ GpDisplayDriverTickStatus_t GpDisplayDriverD3D11::PresentFrameAndSync()
 {
 	SynchronizeCursors();
 
-	float clearColor[4] = { 0.2f, 0.2f, 0.4f, 1.0f };
-
-	m_deviceContext->ClearRenderTargetView(m_backBufferRTV, clearColor);
+	m_deviceContext->ClearRenderTargetView(m_backBufferRTV, m_bgColor);
 
 	ID3D11RenderTargetView *const rtv = m_backBufferRTV;
 	m_deviceContext->OMSetRenderTargets(1, &rtv, nullptr);
@@ -894,6 +892,13 @@ void GpDisplayDriverD3D11::UpdatePalette(const void *paletteData)
 		m_deviceContext->Unmap(m_paletteTexture, 0);
 	}
 }
+void GpDisplayDriverD3D11::SetBackgroundColor(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
+{
+	m_bgColor[0] = static_cast<float>(r) / 255.0f;
+	m_bgColor[1] = static_cast<float>(g) / 255.0f;
+	m_bgColor[2] = static_cast<float>(b) / 255.0f;
+	m_bgColor[3] = static_cast<float>(a) / 255.0f;
+}
 
 GpDisplayDriverD3D11 *GpDisplayDriverD3D11::Create(const GpDisplayDriverProperties &properties)
 {
@@ -926,6 +931,11 @@ GpDisplayDriverD3D11::GpDisplayDriverD3D11(const GpDisplayDriverProperties &prop
 	m_arrowCursor = reinterpret_cast<HCURSOR>(LoadImageW(nullptr, MAKEINTRESOURCEW(OCR_NORMAL), IMAGE_CURSOR, 0, 0, LR_SHARED));
 	m_ibeamCursor = reinterpret_cast<HCURSOR>(LoadImageW(nullptr, MAKEINTRESOURCEW(OCR_IBEAM), IMAGE_CURSOR, 0, 0, LR_SHARED));
 	m_waitCursor = reinterpret_cast<HCURSOR>(LoadImageW(nullptr, MAKEINTRESOURCEW(OCR_WAIT), IMAGE_CURSOR, 0, 0, LR_SHARED));
+
+	m_bgColor[0] = 0;
+	m_bgColor[1] = 0;
+	m_bgColor[2] = 0;
+	m_bgColor[3] = 255;
 }
 
 GpDisplayDriverD3D11::~GpDisplayDriverD3D11()
diff --git a/GpDisplayDriver_D3D11/GpDisplayDriverD3D11.h b/GpDisplayDriver_D3D11/GpDisplayDriverD3D11.h
index aec226f..9acf1c6 100644
--- a/GpDisplayDriver_D3D11/GpDisplayDriverD3D11.h
+++ b/GpDisplayDriver_D3D11/GpDisplayDriverD3D11.h
@@ -46,6 +46,8 @@ public:
 
 	void UpdatePalette(const void *paletteData) override;
 
+	void SetBackgroundColor(uint8_t r, uint8_t g, uint8_t b, uint8_t a) override;
+
 	static GpDisplayDriverD3D11 *Create(const GpDisplayDriverProperties &properties);
 
 private:
@@ -125,4 +127,6 @@ private:
 	HCURSOR m_waitCursor;
 	HCURSOR m_ibeamCursor;
 	HWND m_hwnd;
+
+	float m_bgColor[4];
 };