diff --git a/src/v_video.h b/src/v_video.h
index 14782519c..8d492c7b4 100644
--- a/src/v_video.h
+++ b/src/v_video.h
@@ -412,7 +412,7 @@ public:
 	virtual void WipeEndScreen();
 	virtual bool WipeDo(int ticks);
 	virtual void WipeCleanup();
-	virtual int GetPixelDoubling() const { return 1; }
+	virtual int GetPixelDoubling() const { return 0; }
 
 	uint32 GetLastFPS() const { return LastCount; }
 
diff --git a/src/win32/i_input.cpp b/src/win32/i_input.cpp
index f302d807d..49915bf29 100644
--- a/src/win32/i_input.cpp
+++ b/src/win32/i_input.cpp
@@ -320,8 +320,12 @@ bool GUIWndProcHook(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, LRESU
 		{
 			ev.subtype = EV_GUI_MouseMove;
 		}
-		ev.data1 = LOWORD(lParam) >> screen->GetPixelDoubling(); 
-		ev.data2 = HIWORD(lParam) >> screen->GetPixelDoubling(); 
+
+		{
+			int shift = screen? screen->GetPixelDoubling() : 0;
+			ev.data1 = LOWORD(lParam) >> shift; 
+			ev.data2 = HIWORD(lParam) >> shift; 
+		}
 
 		if (wParam & MK_SHIFT)				ev.data3 |= GKM_SHIFT;
 		if (wParam & MK_CONTROL)			ev.data3 |= GKM_CTRL;