Hi ian, many thanks for the info, I don't hold the threads at all , so I will try that. I did notice that my tension disc spring was bent so I have ordered a new one, only a couple of pounds. Yes, it was when I began sewing this morning, I did change the needle, but only for a new one. I will have a look for the thread you mentioned. Many thanks for your help. Say hello to San Francisco , I haven't been there for ten years! Ian.