I really appreciate people like IronMan and IOpine trying to help others.  I have ProSeries Basic Edition.  I'm also unable to e-file 2021 tax returns.  I've read your solutions but I can't find where to go to clear the checkbox for "Error Checking for Electronic Filing".  I've looked thru all of my options and don't see where this CHECKBOX is located.  Any help would be really appreciated.  Thank you.