If you are using TaxAct software, and you try to import a TurboTax PDF return from the prior year as a starting point, it will fail. This is because TaxAct does not like long file names!
The error I got was "PDF import is down for maintenance, please try again in a few minutes".
In fact it works fine. Just copy your long file name PDF to somethign short, e.g. "2013.pdf", and use that. This is a bug that TaxAct tech support confirmed for me when I called to ask about it.