Annette my first thought is a burr on your needle plate or somewhere else in the thread path. I'd say at least half of my older Brother machines have come to me with at least one needle plate that's chewed up from breaking needles and my 210 is one of them. Another thing to check is the needle itself, does it have a burr, is it slightly bent so it rubs on the needle plate, is it too small for the thread you're using?
Cari