diff --git a/wxPython/demo/GridBagSizer.py b/wxPython/demo/GridBagSizer.py
index c6a223782c..25ef8cdb00 100644
--- a/wxPython/demo/GridBagSizer.py
+++ b/wxPython/demo/GridBagSizer.py
@@ -12,7 +12,10 @@ static text is positioned at (0,0) and it spans 7 columns.
 class TestFrame(wx.Frame):
     def __init__(self):
         wx.Frame.__init__(self, None, -1, "wx.GridBagSizer")
-        p = wx.Panel(self, -1)
+        p = wx.Panel(self, -1, style = wx.TAB_TRAVERSAL
+                     | wx.CLIP_CHILDREN
+                     | wx.FULL_REPAINT_ON_RESIZE
+                     )
         p.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
         
         gbs = self.gbs = wx.GridBagSizer(5, 5)
diff --git a/wxPython/demo/LayoutAnchors.py b/wxPython/demo/LayoutAnchors.py
index a15f34f6c1..aaa4dc8a19 100644
--- a/wxPython/demo/LayoutAnchors.py
+++ b/wxPython/demo/LayoutAnchors.py
@@ -40,7 +40,8 @@ class AnchorsDemoFrame(wx.Frame):
         self.mainPanel = wx.Panel(
                             size=(320, 160), parent=self, 
                             id=ID_ANCHORSDEMOFRAMEMAINPANEL, name='panel1', 
-                            style=wx.TAB_TRAVERSAL | wx.CLIP_CHILDREN, 
+                            style=wx.TAB_TRAVERSAL | wx.CLIP_CHILDREN
+                            | wx.FULL_REPAINT_ON_RESIZE, 
                             pos=(0, 0)
                             )