I can't uncheck something on a page, so it keeps asking me for a form i don't have

so I'm on the Minnesota Credits page, and it says:

"Select any of the following situations that apply to you.
- Paid Minnesota alternative minimum tax in a prior year
- Paid for child care, operated a licensed daycare facility or had a new baby
- Paid long-term care insurance premiums
- Had past military service
- None of the above"

...and it has the first item, "Paid Minnesota alternative minimum tax in a prior year" automatically checked. If I uncheck it an/or check "None of the Above" it asks me for forms in the next page related to it, and if I go back it's automatically checked again.