This message was posted by Kahaluu on AmayaUsers.com. PLEASE DO NOT REPLY VIA EMAIL. Instead, respond to the thread on the WEBSITE by clicking here: http://www.amayausers.com/boards/ultimatebb.php?/topic/1/609.html Top thread is pulling all the way thru and causing a bobbin thread break error. Problem occurred after machine was started without the bobbin fully in place. Recently upgraded OS to latest version To try to correct problem I've Cleaned, replaced, and adjusted bobbin tension Adjusted presser foot height Sewn with auto and manual thread feed settings Performed 4 million thread roller lubrication =========================================================== The AmayaUsers Mailing List Website: http://www.amayausers.com Discussion Board: http://www.amayausers.com/boards Subscribe/Unsubscribe: http://www.amayausers.com/list ===========================================================