--- a/SynchronousWindowSensor.st	Fri Feb 28 13:58:54 2014 +0100
+++ b/SynchronousWindowSensor.st	Fri Feb 28 14:27:02 2014 +0100
@@ -168,6 +168,7 @@
 initialize
     "initialize the event queues to empty"
 
+    super initialize.
 
     gotExpose := IdentitySet new.
     catchExpose := IdentitySet new.
@@ -236,6 +237,6 @@
 !SynchronousWindowSensor class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libview/SynchronousWindowSensor.st,v 1.29 2013-03-08 10:06:07 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libview/SynchronousWindowSensor.st,v 1.30 2014-02-28 13:27:02 cg Exp $'
 ! !