Dear answerers, thanks for your kind help.
The real cases have been VERY useful. If you have more of them, please send the values to me. Thanks again. David --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).

