--- ./programs/Xserver/hw/xwin/save_winmultiwindowwndproc.c	2006-06-10 07:41:49.000000000 +0100
+++ ./programs/Xserver/hw/xwin/winmultiwindowwndproc.c	2006-06-10 09:53:49.000000000 +0100
@@ -395,6 +395,15 @@
        * currently being created.
        */
       winReorderWindowsMultiWindow ();
+
+      /* Fix a 'round title bar corner background should be transparent not black' problem when first painted */
+      RECT rWindow;
+      HRGN hRgnWindow;
+      GetWindowRect(hwnd, &rWindow);
+      hRgnWindow = CreateRectRgnIndirect(&rWindow);
+      SetWindowRgn (hwnd, hRgnWindow, TRUE);
+      DeleteObject(hRgnWindow);
+
       return 0;
 
     case WM_INIT_SYS_MENU: