I bought this machine in December 2008 and just started using it tonight. The pressure foot is pushing down so hard that the fabric will not move when the machine is operated. I tried adjusting the pressure with a coin but it does not change. It looks like possibly it is jammed down. Should I go to a Singer Repair place or take it back to WalMart? I did not save the box but it was broken when I got it. What should I do? My zip code is 55347 and I live in Eden PRairie , Minnesota.