I am having the same problem. I did find a way to escape the dreaded infinite loop and that is by just entering the code "D" in Box 7 (eliminating the code "4"). My final tax owed remained the same. I don't know if this would cause an alert with the IRS since the amount of tax I will be paying seems to be correct. I have put too much time trying to figure out the correct way to enter my information and certainly don't want to print out my return and mail it.
