Thanks I figured it out-in the initial guided company income tax exempt questions, when the system asks me, I shouldn't fill in 0, instead I should skip the questions. Once I deleted the 0 in the initial answers, the black zero were automatically gone in the forms. There is just no way to delete them manually in the forms although I already traced to the first form where the zero showed up. This should be a system design error. Please report to the TurboTax Business software design team and let them update the software to give user the option to manually deleted any zeros if they accidentally answers any 0 in any of the previous questions which will prevent the system to submit the tax return successfully later. I hope whoever see this post are able to solve their similar problems!
