He says to try just leaving your name blank and seeing if it will let you move forward.
I say also try using the Enter Key on the keyboard. If they doesn't work, try specifically NOT using the Enter Key on the keyboard and making sure you only submit the blank through the in-game submit button. Mind you, I've never played the game, so mine are just simple troubleshooting ideas.
Please let us know if you find a way to make it work. He plans to just remove that from the Game when he starts working tonight.