CSF 1099R

while entering data in Turbo Tax I encountered a problem with the CSF 1099R.  Item 2a automatically populated the dollar figure from item 1.  My hard copy of form CSF 1099 R  has the word " UNKNOWN"  in item 2a. The system will not allow me to change this.  Is this a glitch? if yes, is there a way to work around it, if not, thank you for your assistance