I recently had the same problem. I tried so many different things, but the best one was a wallpaper steamer! The greatest things about that is that the cutback gets wet so the asbestos is not airborne so you're not breathing it in. You can find my whole report on it on my blog http://kacisramblings.blogspot.com/2009/09/remove-laminate-cutback-from-hardwood.html