diff --git a/Makefile.in b/Makefile.in
index f3d26522cf..5394eb0c22 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -410,6 +410,7 @@ preinstall: $(build_libdir)/@WX_TARGET_LIBRARY@ $(top_builddir)/wx@TOOLCHAIN_NAM
 
 	$(INSTALL) -d $(libdir)/wx
 	$(INSTALL) -d $(libdir)/wx/include
+	$(INSTALL) -d $(libdir)/wx/include/univ
 	$(INSTALL) -d $(libdir)/wx/include/@TOOLCHAIN_NAME@
 	$(INSTALL) -d $(libdir)/wx/include/@TOOLCHAIN_NAME@/wx
 	$(INSTALL_DATA) $(build_libdir)/wx/include/@TOOLCHAIN_NAME@/wx/setup.h \
@@ -420,6 +421,7 @@ preinstall: $(build_libdir)/@WX_TARGET_LIBRARY@ $(top_builddir)/wx@TOOLCHAIN_NAM
 	@if test "$(USE_GUI)" = 1; then $(INSTALL) -d $(includedir)/wx/@TOOLKIT_DIR@; fi
 	@if test "$(USE_GUI)" = 1; then $(INSTALL) -d $(includedir)/wx/html; fi
 	@if test "$(USE_GUI)" = 1; then $(INSTALL) -d $(includedir)/wx/generic; fi
+	@if test "$(USE_GUI)" = 1; then $(INSTALL) -d $(includedir)/wx/univ; fi
 	@if test "@TOOLKIT_DIR@" = "msw"; then $(INSTALL) -d $(includedir)/wx/msw/ole; fi
 
 	@# always install msw headers for wxBase, it's much simpler
@@ -510,6 +512,7 @@ uninstall:
 	@if test -d $(includedir)/wx/msw; then rmdir $(includedir)/wx/msw; fi
 	@if test -d $(includedir)/wx/html; then rmdir $(includedir)/wx/html; fi
 	@if test -d $(includedir)/wx/unix; then rmdir $(includedir)/wx/unix; fi
+	@if test -d $(includedir)/wx/univ; then rmdir $(includedir)/wx/univ; fi
 	@if test -d $(includedir)/wx/generic; then rmdir $(includedir)/wx/generic; fi
 	@if test -d $(includedir)/wx/protocol; then rmdir $(includedir)/wx/protocol; fi
 	@if test -d $(includedir)/wx; then rmdir $(includedir)/wx; fi
diff --git a/src/x11/toplevel.cpp b/src/x11/toplevel.cpp
index be70734bf3..779bb40699 100644
--- a/src/x11/toplevel.cpp
+++ b/src/x11/toplevel.cpp
@@ -108,24 +108,56 @@ bool wxTopLevelWindowX11::Create(wxWindow *parent,
     m_windowId = id == -1 ? NewControlId() : id;
 
     wxTopLevelWindows.Append(this);
-   
-    Atom wm_delete_window = XInternAtom(wxGlobalDisplay(), "WM_DELETE_WINDOW", False);
+    
+    Display *xdisplay = wxGlobalDisplay();
+    int xscreen = DefaultScreen( xdisplay );
+    Visual *xvisual = DefaultVisual( xdisplay, xscreen );
+    Window xparent = RootWindow( xdisplay, xscreen );
+    
+    XSetWindowAttributes xattributes;
+    XSizeHints size_hints;
+    XWMHints wm_hints;
+    
+    long xattributes_mask =
+        CWEventMask |
+        CWBorderPixel | CWBackPixel;
+    xattributes.background_pixel = BlackPixel( xdisplay, xscreen );
+    xattributes.border_pixel = BlackPixel( xdisplay, xscreen );
+    xattributes.override_redirect = False;
+    
+    Window xwindow = XCreateWindow( xdisplay, xparent, pos.x, pos.y, size.x, size.y, 
+       0, DefaultDepth(xdisplay,xscreen), InputOutput, xvisual, xattributes_mask, &xattributes );
+    
+    XSelectInput( xdisplay, xwindow,
+        ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
+        ButtonMotionMask | EnterWindowMask | LeaveWindowMask | PointerMotionMask |
+        KeymapStateMask | FocusChangeMask | ColormapChangeMask | StructureNotifyMask |
+        PropertyChangeMask );
 
-    XSetWMProtocols(wxGlobalDisplay(), (Window) GetMainWindow(), &wm_delete_window, 1);
+    wxAddWindowToTable( xwindow, (wxWindow*) this );
+    
+    XSetTransientForHint( xdisplay, xwindow, xparent );
+    
+    size_hints.flags = PSize;
+    size_hints.width = size.x;
+    size_hints.height = size.y;
+    XSetWMNormalHints( xdisplay, xwindow, &size_hints);
+    
+    wm_hints.flags = InputHint | StateHint /* | WindowGroupHint */;
+    wm_hints.input = True;
+    wm_hints.initial_state = NormalState;
+    XSetWMHints( xdisplay, xwindow, &wm_hints);
+    
+    Atom wm_delete_window = XInternAtom( xdisplay, "WM_DELETE_WINDOW", False);
+    XSetWMProtocols( xdisplay, xwindow, &wm_delete_window, 1);
+    
 #if 0
     SetWMDecorations((Window) GetMainWindow(), style);
 #endif
 
     SetTitle(title);
-
-    if ( GetExtraStyle() & wxTOPLEVEL_EX_DIALOG )
-    {
-        return CreateDialog(title, pos, size);
-    }
-    else // !dialog
-    {
-        return CreateFrame(title, pos, size);
-    }
+    
+    return TRUE;
 }
 
 wxTopLevelWindowX11::~wxTopLevelWindowX11()