style = self.GetWindowStyleFlag()
         self.InvalidateBestSize()
         if not style & wx.ST_NO_AUTORESIZE:
-            self.SetInitialSize(self.GetBestSize())
+            self.SetSize(self.GetBestSize())
         self.Refresh()
 
 
         style = self.GetWindowStyleFlag()
         self.InvalidateBestSize()
         if not style & wx.ST_NO_AUTORESIZE:
-            self.SetInitialSize(self.GetBestSize())
+            self.SetSize(self.GetBestSize())
         self.Refresh()