I have a brother 6000 Innovis and love it. However, I seem to have developed a little bit of a problem. I am making a quilt in the hoop that takes tons of embroidery. It's one from Hoop Sisters. For some reason today, it will do about 20 stitches and stop with the message that I need to rethread the upper thread, and it is all threaded I've changed needles, rethreaded numerous times, rethreaded the bobbin, even took the cover off the machine and cleaned out all lint balls. My frustration levels are at an all time high so I went through the machine settings and turned off the thread sensor and it works. I turn the sensor back on and it stops every 20 stitches. I don't mind having the sensor turned off, but now it won't let me know when the bobbin is running out or if my upper thread breaks and each block takes 3-4 bobbins. Anyone else ever have this problem? Any ideas on what to do other than take it to the dealer. Just did that recently and had it serviced and I don't want to take it in again until I have to.