I too have the same problem with the standalone version running on Windows. This has worked for many years in Turbo Tax. It's only this year that I've run into this. If I replace the starting 0 with a 1, the entry is accepted even though this is not the correct SSN.
This is definitely a bug in TurboTax.
Update: After about 1-hour on the phone with support, nothing was resolved. The problem was pushed up and I received a callback about a 1/2-hour later. Support sent me a link for a manual update which fixed the problem after my computer was restarted.
