it wont save my 1099-int correctly. it has interest income but no other boxes marked. but keeps changing my answer after i hit save.

You should try to deleting that Form 1099-INT and input it again.

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To delete your Form 1099-INT you can do the following:

For TurboTax Desktop:

1. Open/continue your return
2. Click on "Search" 
3. And in the search bar type"1099-INT"
4. Select "Jump to 1099-INT"
5. It'll take you to a screen that shows your Form(s) 1099-INT that you have entered.
6. Next to the Form 1099-INTyou want to delete, click on the (down-Facing) caret
7. Click on the "garbage can" to delete this form

For TurboTax Online:

1. Open/continue your return
2. Click on magnifying glass for Search in the top right of your screen
3. And in the search bar type"1099-INT"
4. Select "Jump to 1099-INT"
5. It will take you to a screen that shows your Form(s) 1099-INT that you have entered.
6. Next to the Form 1099-INT you want to delete, click on the (down-Facing) caret
7. Click on the "garbage can" to delete this form

It will look something like this:

Click here for Turbo Tax information regarding Forms 1099-INT.