I bought a Tin Lizzie Ansley at the Machine Quilting show in May 2010 and the longest it has ever worked at one time is about three weeks. The repairman from the dealer has been to my home several times but he just replaces the encoder and never really tries to find the root of the problem. I'm not a professional quilter and but have quilted for years and had dreamed of one day having a longarm of my own. I wonder if anyone else has had this problem - has anyone gotten an answer as to the cause.