I was able to get past this issue using a manual update process - found here:
https://ttlc.intuit.com/community/updating/help/manually-update-turbotax-for-windows-soft[product ke...
Download the file, run the updater and try to e-file your taxes again. It has worked for a number of folks with this issue; it certainly worked for me.
The TurboTax program even seems to run a little smoother after this manual update, so I have to wonder what was left out of the last set of updates they pushed out...
