Our system won't even let us print the form because it is not final.  It did for about a week, in between updates.  But when it changed back to 3/4 it stopped allowing us to print it.  Also, be careful because ProSeries thinks that the estimated tax payments for replacement tax and PTE tax are VOLUNTARY.  It is not voluntary.  The system calculates estimates based on PTE tax alone.  You have to go to the worksheet and type in the current year net income for it to calculate the replacement tax portion of the estimated tax payments.  This should absolutely be automatic and not a manual entry.  And finally, you are required to pay estimates electronically if you owe Illinois over 20k.  ProSeries will not allow for this yet.  You can check the electronic payment box for the voucher, but not for the estimated tax payments yet.  So there is no way to get the filing instruction letter to print correctly.  Come on ProSeries, get your act together.