Deductions & credits

Hi, I'm having the same problem as you've helped solve here (limit int/points on 1098), but i'm unable to check the "No" box after the question: "Does you mortgage interest need to be limited?".  When I click on the "No" box it becomes highlighted, but the X doesn't move from the Yes box to the No box.  I've installed the latest updates... any suggestions??  Thanks!  -Gawain