Ok, here goes. I just bought a Prisma 980 as a backup machine, and I am having a heck of a time finding the bobbins. My Sapphire bobbins won't work, they are just a fraction too large to fit the casing, and I don't know where to look for the others. Anybody got a guess? Do I need to look online? Would JoAnn's carry them since they sell the Vikings? HELP.