I was sewing merrily along when I ran out of bobbin thread. After rewinding and putting in the rewound bobbin, I started sewing again. Fabric moved along w/o a problem. However, there were no stitches, only tiny little holes where the thread should've been. Perhaps I put in the bobbin the wrong way? Took it out and inserted it the other way and started sewing again. Still no stitches, just tiny holes. I didn't touch the threading on the machine since I used the Sidewinder. I was on a roll and now this has to happen! Any help would be appreciated!