I have had the same problem. My wife and I are working for the same employer and we have received two W-2's for the same amount, one under my SSN, another one under my wife's SSN. I think it is problem with TURBOTAX application itself, programming problem. I have had the same situation last year, but did not encounter this problem. When my Federal e-file got rejected because of duplicate W-2's, I have had the same idea as you are, I added $1.00 to one of the W-2's. It did not get rejected so far, but we did not receive confirmation of acceptance either.
