I'm sorry. I didn't mean to cause a problem. I was just frustrated and looking for answers. I would gladly direct my questions to the proper forum, if I knew where that proper forum was. I have a CTC Bizer dual extruder printer. I did a "Bing" search for "upgraded to sailfish and now extruder over heat" & "how to revert backward after upgrading to sailfish" and there was nothing showing up as a forum that had any answers. If you could kindly suggest a proper forum, I would be more than happy to ask the questions there instead of bothering you, as it seems I must have by the response you gave. Than again, I am frustrated so maybe I just took your response the wrong way. If so, I apologize.