Hit test collision problem

Apologies if this has been posted before, but I couldn’t find anything similar after an extensive search.

I am a newbie at AS 3.0 but have got several (quiz-style games) things to work - this works, but has a fault I cannot rectify.

I’ve created a hit test style quiz, which works successfully, but with one caveat. There is a long list of words which need to be sorted into type A or type B, which the learner does by dragging a word and dropping it over their chosen type. If correct the original word disappears, they get a “correct” message and the word reappears in a list underneath the choice to confirm. If in correct, they receive an “incorrect message” and the word reappears in the other list, confirming it’s correct location.

My problem is that the learner can accidentally hit the ‘Type A’ area by accident if they are not careful, even when they are planning on dropping it over ‘Type B’ area (and vice versa). Ie when they pick up an mc and they don’t drag in a straight line it can hit the answer they don’t want it to - giving them an incorrect answer when they should be getting a correct one.

In AS 2.0 this would not have been a problem as the hit test could have been done on ‘release’ of the mc. The MouseEvent.MOUSE_UP doesn’t work with the hit test learner in AS 3.0 - so I cannot work out how to avoid it.

Can anyone help, please?!