diff --git a/src/java/org/lwjgl/opengl/WindowsDisplay.java b/src/java/org/lwjgl/opengl/WindowsDisplay.java
index 7d4f8f07..e067575e 100644
--- a/src/java/org/lwjgl/opengl/WindowsDisplay.java
+++ b/src/java/org/lwjgl/opengl/WindowsDisplay.java
@@ -136,7 +136,6 @@ final class WindowsDisplay implements DisplayImplementation {
 		showWindow(getHwnd(), SW_SHOWDEFAULT);
 		setForegroundWindow(getHwnd());
 		setFocus(getHwnd());
-		updateWindow(getHwnd());
 	}
 	private native void nCreateWindow(DisplayMode mode, boolean fullscreen, int x, int y) throws LWJGLException;
 
@@ -182,7 +181,6 @@ final class WindowsDisplay implements DisplayImplementation {
 	private static native void showWindow(long hwnd, int mode);
 	private static native void setForegroundWindow(long hwnd);
 	private static native void setFocus(long hwnd);
-	private static native void updateWindow(long hwnd);
 
 	private void restoreDisplayMode() {
 		try {
diff --git a/src/native/windows/context.c b/src/native/windows/context.c
index fffb23ab..f2184077 100644
--- a/src/native/windows/context.c
+++ b/src/native/windows/context.c
@@ -55,6 +55,7 @@ extern HINSTANCE dll_handle;                     // Handle to the LWJGL dll
 bool registerWindow(WNDPROC win_proc, LPCTSTR class_name)
 {
 	WNDCLASS windowClass;
+	memset(&windowClass, 0, sizeof(windowClass));
 	windowClass.style = CS_OWNDC;
 	windowClass.lpfnWndProc = win_proc;
 	windowClass.cbClsExtra = 0;
@@ -62,7 +63,7 @@ bool registerWindow(WNDPROC win_proc, LPCTSTR class_name)
 	windowClass.hInstance = dll_handle;
 	windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
 	windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);
-	windowClass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
+	windowClass.hbrBackground = NULL;
 	windowClass.lpszMenuName = NULL;
 	windowClass.lpszClassName = class_name;
 
diff --git a/src/native/windows/org_lwjgl_opengl_Display.c b/src/native/windows/org_lwjgl_opengl_Display.c
index 93914146..f36f2d42 100644
--- a/src/native/windows/org_lwjgl_opengl_Display.c
+++ b/src/native/windows/org_lwjgl_opengl_Display.c
@@ -247,11 +247,6 @@ JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsDisplay_nSetGammaRamp(JNIEnv
 	setGammaRamp(env, gamma_buffer);
 }
 
-JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsDisplay_updateWindow(JNIEnv *env, jclass unused, jlong hwnd_ptr) {
-	HWND hwnd = (HWND)(INT_PTR)hwnd_ptr;
-	UpdateWindow(hwnd);
-}
-
 JNIEXPORT void JNICALL Java_org_lwjgl_opengl_WindowsDisplay_showWindow(JNIEnv *env, jclass unused, jlong hwnd_ptr, jint mode) {
 	HWND hwnd = (HWND)(INT_PTR)hwnd_ptr;
 	ShowWindow(hwnd, mode);