On 3/15 I generated Form 8879 and sent it to my client.  I receive it back on 3/20 and did not think to double check everything since the return had not been touched.  I transmitted his returns.  Not until I was writing up notes did I realize that his 1099-G unemployment "dropped" from the 1040 and this AGI calculation reducing tax liability by $1000 and screwing up the State return as well.

Was there a system change?  Do I need to file amended returns now?

Liz