diff -r d803ba077da0 -r 9106d66bd204 SFCViewer.py
--- a/SFCViewer.py	Wed Mar 18 16:42:12 2009 +0100
+++ b/SFCViewer.py	Thu Mar 19 18:10:12 2009 +0100
@@ -170,7 +170,7 @@
         elif self.Mode == MODE_SELECTION:
             dc = self.GetLogicalDC()
             pos = event.GetLogicalPosition(dc)
-            if event.ShiftDown():
+            if event.ShiftDown() and not event.ControlDown() and self.SelectedElement is not None:
                 element = self.FindElement(pos, True)
                 if element and not self.IsWire(element):
                     if isinstance(self.SelectedElement, Graphic_Group):
@@ -186,6 +186,7 @@
                         self.SelectedElement = element
                     elif len(elements) == 1:
                         self.SelectedElement = elements[0]
+                    self.SelectedElement.SetSelected(True)
             else:
                 element = self.FindElement(pos)
                 if self.SelectedElement and self.SelectedElement != element: