Ok, the machine I have is fairly new, less than a year old, and yesterday when I was working on a quilt, I had just finished one block and was starting to sew it to another when it suddenly would not pull the fabric through. I've cleaned it thoroughly, checked the works above and below the needle, tried different fabrics, played with the tension, stitches and stitch length and nothing. The machine I have is very simple too, there is no switch to lift or lower the feed dog or anything I could have hit. I had literally just finished sewing one thing and was starting to sew another but it would not pull the fabric through. Please help me out, thanks.