Solved
The prompts do no ask for any additional W-2 information.
After you enter the first W-2, keep going through the screens until you get to the "Your W-2s" summary screen that lists the W-2 you have already entered. On that screen click the button that says "Add another W-2." If you are filing a joint return there will be two buttons, one for each spouse. Be sure to click the correct button for the person whose W-2 you are adding.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.