There needs to be a way when tax returns are E-Filed you have a day or even an hour to pull the returns back if they were efiled in error and then be able to resubmit the returns.  At the least, be able to call ProSeries tech support within a timely manner for them to reject the returns before they are forwarded on to the IRS or State.  

Just giving heads up, when you are E-Filing a tax return in ProSeries and hit the cancel button, it does NOT work.