I am also happy to report that after uninstalling, shutting down (not restarting) my computer, then waiting for over an hour and starting my computer, then reinstalling TT2020 from my CD and then NOT launching TT2020, shutting my computer down. I waited about an hour and started my computer, then started TT2020 and allowed it to update. When the update finished and the window noting what had been updated, I check and the Program update had date of 5/6/21 (it is was 4/29/21 before) and the Michigan update had a date of 5/7/21 (it was 4/29/21 before). I was ABLE TO FILE BOTH RETURNS. Hurrah!! TT must have fixed something. I hope everyone else finally had success.
