Two things to check:
1) go back to the MyInfo section and check to make sure you didn't mis-finger your birthdate. Use all 4 digit for the year.
2) then, edit the 1099-R, and see what codes you entered in one or both boxes for box 7...what codes did you enter? and did they match the 1099-R you received (especially if you imported teh 1099-R...the import may have been misformatted)...at your age, there should not normally be a 1 or a 2 as a box 7 code (but maybe there is an unusual circumstance, like maybe certain ROTH distribution situations?)
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*