My Janome 6600P thread cutter suddenly went on strike. I have cleaned out the bobbin casing and underneath the machine so not a spect of dust remains, however the auto cutter still is not working. Does anyone have any pointers or ideas on what the problem may be? I had this problem once before about a year ago when the machine was only 6 months old and took it in for servicing. They said there was no problem and told me it was probably the thread I was using. The cutter was working fine with the thread I was using for an entire quilt top, so this can't be the problem this time. Sign me frustrated!