Thanks everyone for your thoughts. I would love it if anyone had a way of fixing the timing. I purchased this machine about 4 1/2 years ago and have had nothing but trouble. I have followed all the directions, used the right bobbins and threads. It just makes me so upset because I have been fighting with them for so long and they don't seem to care. I know that they have fixed the problem in the later machines, so I don't know why they won't admit that this machine is a lemon. My daughter recently gave me a Brother SE350 and so far it is so much fun.