How do I handle multiple 1098 forms when I sold a home?

I sold a home last year, bought a new one.  The new loan was bought out, so I have 3 1098 forms.  If I enter all 3, I'm told that the mortgage value was over $750,000 so I can't count PMI, even though I only ever owned 1 home at once and it was much, much less than that level.  How do I enter that so I can count the PMI?