I ended up calling TT for help. The problem was a particularly difficult one but the support agent persisted until he resolved the problem. THANK YOU!
E-filing of PA taxes requires Schedule UE (Unreimbursed Employee Expenses) to be completed, even if you have no entries. The reason is that Form 2106 (Unreimbursed Employee Expenses) in the Federal 1040 is sent to the State, again even if you have no entries. It appears that if 2106 is sent to the State, even with zero entries, Schedule UE MUST be completed. This is the programming glitch.
The solution is: 1) Go to FORMS, select 2106, and DELETE it; then scroll down to PA-40 and select Schedule UE and DELETE it.
Then go to the FILE tab, through to e-file and transmit the returns.
I had immediate success using TT Premier CD.