--- a/ExternalStream.st	Mon Dec 17 20:37:12 2012 +0100
+++ b/ExternalStream.st	Mon Dec 17 20:37:33 2012 +0100
@@ -2454,7 +2454,8 @@
 
     ^ exClass newException
         errorCode:errorNumber;
-        errorString:(' : ' , (OperatingSystem errorTextForNumber:errorNumber));
+        "/ cg: initialized lazyly - see #description in OpenError
+        "/ errorString:(' : ' , (OperatingSystem errorTextForNumber:errorNumber));
         parameter:self;
         raiseRequest
         "/ in:thisContext sender
@@ -5694,11 +5695,12 @@
 !ExternalStream class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libbasic/ExternalStream.st,v 1.352 2012-11-19 15:01:44 stefan Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic/ExternalStream.st,v 1.353 2012-12-17 19:37:33 cg Exp $'
 !
 
 version_CVS
-    ^ '$Header: /cvs/stx/stx/libbasic/ExternalStream.st,v 1.352 2012-11-19 15:01:44 stefan Exp $'
+    ^ '$Header: /cvs/stx/stx/libbasic/ExternalStream.st,v 1.353 2012-12-17 19:37:33 cg Exp $'
 ! !
 
+
 ExternalStream initialize!