I have run into another problem. The stepper motor for my extruder has stopped spinning. I have had no problems with this stepper motor since the start. I have always been able to turn it freely with very little force (my fingers). Now, i have to really try to turn it even then it sonetimes doesnt move. I have tried using using the setting on the "prepare" menu to move the motor but nothing happens, just a faint humm (no vibrations, no screeching). I took the face plate off and took the gearbox out; There was nothing inside that seemed to be jamming it. All the peices seemed to be intact. I have looked all over the internet but I just cant seem to find a solution. Any ideas?