@bellamac
If you simply overtype the letters with lower case...no, that may not work as the system seems to think it wasn't changed.
You should delete the box 15 number/letter entry entirely...then click in another box on the form so that the computer sees that the state number is empty...then come back to the number-letter box and retype the entire number and letters again.....lower case.
This time, it should keep the lower case letters.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
