When E-filing prior year returns you want to make sure that you are up to date with the latest software version which can be located by:
1. Clicking on communications tab at the top or your screen
2. Clicking the get program updates button
3. Software will either ask to download latest version or tell its up to date.
4. Once you are updated you'll be able to e-file prior year returns.
This information applies to all years of the UltimateTax software that can be E-filed.