Go into the Forms mode in TurboTax and look for Form 1099-INT on the left side of your screen.
Check for any '! Red' marks and also any highlighted fields in the form. This should give you an indication of what need to be corrected.
To switch to Forms Mode, open your return and click the Forms icon in the upper-right corner of your screen (or choose Forms from the View menu at top).
The 1040 Worksheet will display and all the forms in your return will be listed on the left side. Simply select a form to open it.
To switch back to the interview, click the Step-by-Step icon in the upper right corner, or choose it from the View menu.
-follow these links for more information on 1099-INT-
Where do I enter Form 1099-INT?
Filing Tax Form 1099-INT: Interest Income - TurboTax Tax Tips ...