diff --git a/src/common/platform/win32/i_input.cpp b/src/common/platform/win32/i_input.cpp
index 05988060f..4ce8766aa 100644
--- a/src/common/platform/win32/i_input.cpp
+++ b/src/common/platform/win32/i_input.cpp
@@ -491,7 +491,7 @@ LRESULT CALLBACK WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 		break;
 
 	case WM_ERASEBKGND:
-		return true;
+		return DefWindowProc(hWnd, message, wParam, lParam);
 
 	case WM_DEVICECHANGE:
 		if (wParam == DBT_DEVNODES_CHANGED ||
diff --git a/src/common/platform/win32/i_mainwindow.cpp b/src/common/platform/win32/i_mainwindow.cpp
index 5b246e457..81bd3894b 100644
--- a/src/common/platform/win32/i_mainwindow.cpp
+++ b/src/common/platform/win32/i_mainwindow.cpp
@@ -39,7 +39,7 @@ void MainWindow::Create(const FString& caption, int x, int y, int width, int hei
 	WndClass.hInstance = hInstance;
 	WndClass.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON1));
 	WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
-	WndClass.hbrBackground = NULL;
+	WndClass.hbrBackground = CreateSolidBrush(RGB(0,0,0));
 	WndClass.lpszMenuName = NULL;
 	WndClass.lpszClassName = WinClassName;
 
@@ -55,7 +55,7 @@ void MainWindow::Create(const FString& caption, int x, int y, int width, int hei
 		WS_EX_APPWINDOW,
 		WinClassName,
 		wcaption.c_str(),
-		WS_OVERLAPPEDWINDOW | WS_VISIBLE | WS_CLIPCHILDREN,
+		WS_OVERLAPPEDWINDOW/* | WS_VISIBLE*/ | WS_CLIPCHILDREN,
 		x, y, width, height,
 		(HWND)NULL,
 		(HMENU)NULL,