Thanks so much for your input. I've been neglectful of my 401. While the 401 was in the shop (for months), I got used to my 301 and have kept using it. (I love the speed.) I haven't done much to see what's actually ailing the 401. However, it's the only machine I have that has a zig-zag, so I need to get it working well.
The only small problem is, that it's in the front window and the dogs love to sit on the cabinet and watch the world go by.
Thanks again,
bkay