I used the download version and I'm not familiar with the online version. In the download version I went to the "Forms" view and edited Turbotax's processed version of my W-2. By processed I mean its version of what I entered during the step-by-step interview process. My W-2 is blank in Box 10 but there is a bug in Turbotax such that their processed version as seen in the "Forms" view has data in Box 10. This was the error. When zeroed out Box 10 in the "Forms" view and resubmitted the e-file, my return was accepted. How this helps.
