diff -up ./Fl.cxx.henrik ./Fl.cxx
diff -up ./Fl_win32.cxx.henrik ./Fl_win32.cxx
--- ./Fl_win32.cxx.henrik	2014-05-23 13:11:10.341222221 +0200
+++ ./Fl_win32.cxx	2014-05-23 13:40:12.790769322 +0200
@@ -983,8 +983,7 @@ static LRESULT CALLBACK WndProc(HWND hWn
 
   case WM_CLOSE: // user clicked close box
     Fl::handle(FL_CLOSE, window);
-    PostQuitMessage(0);
-    return 0;
+    break;
 
   case WM_SYNCPAINT :
   case WM_NCPAINT :
@@ -1367,12 +1366,11 @@ static LRESULT CALLBACK WndProc(HWND hWn
     return 0;
 
   case WM_CHANGECBCHAIN:
-    if ((hWnd == clipboard_wnd) &&
-        (next_clipboard_wnd == (HWND)wParam)) {
+    if ((hWnd == clipboard_wnd) && (next_clipboard_wnd == (HWND)wParam))
       next_clipboard_wnd = (HWND)lParam;
-      return 0;
-    }
-    break;
+    else
+      SendMessage(next_clipboard_wnd, WM_CHANGECBCHAIN, wParam, lParam);
+    return 0;
 
   case WM_DRAWCLIPBOARD:
     // When the clipboard moves between two FLTK windows,
diff -up ./Fl_Window.cxx.henrik ./Fl_Window.cxx