Alos, one time in the past I had to go thru twice to fix it. Once to delete the Stae ID number entirely....then work my way out....then re-edit the whole form again putting it in with the lower case letters. I have no idea whether that might be required now also...or whether one thru works.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
