diff -r b7c1914034f9 -r 8848ffb7ae2a PLCOpenEditor.py
--- a/PLCOpenEditor.py	Wed May 23 10:36:18 2012 +0200
+++ b/PLCOpenEditor.py	Wed May 23 10:48:40 2012 +0200
@@ -956,6 +956,9 @@
             notebooks[entry_name] = self.SaveTabLayout(notebook)
         self.Config.Write("notebooks", cPickle.dumps(notebooks))
         
+        pane = self.AUIManager.GetPane(self.TabsOpened)
+        if pane.IsMaximized():
+            self.AUIManager.RestorePane(pane)
         self.Config.Write("perspective", self.AUIManager.SavePerspective())
     
         self.SaveProjectLayout()