Somewhere in this thread (or one of the several like it) somebody said this was happening because of corrupted software from a reseller. The solution was to convince TT Customer Help to send you new, uncorrupted program. As for me, I was so frustrated that I decided to just buy it new (again) but directly from TT, and take the hit, as the refund period from the reseller had expired. The new software worked fine and I was able to file.
This solution may not be for everyone, but it saved my sanity.
