diff -r bc2e98641bdd -r 2a9d4eafaddd SFCViewer.py
--- a/SFCViewer.py	Sun Jul 01 23:36:44 2012 +0200
+++ b/SFCViewer.py	Sat Jul 07 20:48:23 2012 +0200
@@ -691,7 +691,9 @@
             for block in self.Blocks:
                 if isinstance(block, SFC_Step):
                     choices.append(block.GetName())
-            dialog = wx.SingleChoiceDialog(self.ParentWindow, _("Add a new jump"), _("Please choose a target"), choices, wx.OK|wx.CANCEL)
+            dialog = wx.SingleChoiceDialog(self.ParentWindow, 
+                  _("Add a new jump"), _("Please choose a target"), 
+                  choices, wx.DEFAULT_DIALOG_STYLE|wx.OK|wx.CANCEL)
             if dialog.ShowModal() == wx.ID_OK:
                 value = dialog.GetStringSelection()
                 self.SelectedElement.AddOutput()