Release Sales Order For Picking

Hi,

In R12 Upgraded environment when we trying to release sales order by release order rule,TO scheduled ship and TO requested dates are removed ( When we open release order form, these dates default value is sysdate)

But in 11i system when we trying to release sales order by release order rule, TO scheduled ship and TO requested  dates are still sysdate.

In two instance (11i and R12) rules don't have any value in scheduled ship and requested dates at release rules definition form.

So we want to see sysdate in in scheduled ship and requested dates value in R12, when we choose any rules in release sales order form. Do you have any idea?