I typed up a rather crude but helpful to the novice one page document on how to re-attach your draw string. I am going to assume this is a common issue since I have seen it a few times in posts and mine has become detached three times. This fixes the reason why the carriage does not return or is sluggish to return. This is a DIY tip and I am not a professional. If you are not handy or don't enjoy fixing things yourself, this might not be a good project for you. On the other hand, it's not very hard. PATIENCE!