Can you help? Chicago member here and NEW on this machine, which I inherited from my mom. I'm a lifetime seamstress (about 38 years, I guess). Machine was not used for about 35 years so I oiled it up, all seemed fine, I knocked out a quilt, but then it seems to be sewing BACKWARDS. Feed dog issue? HELP! I've only used regular machines all my life so go easy on me, assume I'm a total beginner on this machine because I AM! Please help, I'm tearing my hair out.