I also have a husquvarna and had the same problem with the needle and the thread, tried all I could think of as well as the problem solver section in the handbook. It turned out to be the thread, was using gutterman varigated @ $13.99 for 300yrds. But it could be worse the machine could have been at fault.
Another thing that can happen is if you move your hands faster than the needle is going you will break needle as it gets pulled to the side and hits the needle plate. hope this helps.