diff -r 203c4acdaf27 -r b695f7459ef6 LDViewer.py
--- a/LDViewer.py	Wed Jan 23 18:26:49 2008 +0100
+++ b/LDViewer.py	Fri Jan 25 17:30:49 2008 +0100
@@ -435,7 +435,7 @@
                         self.SelectedElement.Delete()
                 self.RefreshBuffer()
                 self.RefreshScrollBars()
-                self.Refresh()
+                self.Refresh(False)
             elif keycode == wx.WXK_LEFT:
                 if event.ControlDown() and event.ShiftDown():
                     self.Scroll(0, ypos)
@@ -540,7 +540,7 @@
             self.Rungs.append(rung)
             self.RefreshBuffer()
             self.RefreshScrollBars()
-            self.Refresh()
+            self.Refresh(False)
 
     def AddLadderContact(self):
         wires = []
@@ -633,7 +633,7 @@
                 self.RefreshRungs(new_bbox.height - old_bbox.height, rungindex + 1)
                 self.RefreshBuffer()
                 self.RefreshScrollBars()
-                self.Refresh()
+                self.Refresh(False)
         else:
             message = wx.MessageDialog(self, "You must select the wire where a contact should be added!", "Error", wx.OK|wx.ICON_ERROR)
             message.ShowModal()
@@ -854,7 +854,7 @@
                 self.RefreshRungs(new_bbox.height - old_bbox.height, rungindex + 1)
                 self.RefreshBuffer()
                 self.RefreshScrollBars()
-                self.Refresh()
+                self.Refresh(False)
             else:
                 message = wx.MessageDialog(self, "The group of block must be coherent!", "Error", wx.OK|wx.ICON_ERROR)
                 message.ShowModal()