craftgrrl | loading a drop-in bobbin

Hi all,

I haven't sewed in awhile because both my machnes had problems. I've got them back now from the repair shop but I find once again that I'm having problems loading the bobbin of my Shark machine into the bobbin case so I can sew. It's a metal case bobbin that goes in in an up and down postion and all my life, I've used the drop in kind that lay flat. Every now and then, I've managed to get it installed correctly, but even looking at the directions that came with the machine doesn't really help. I've searched online too but can't find something to let me know what I do wrong that makes the bobbin fall out. There is a little lever on the metal bobbin case that you lift up and release as you install it, I think. Can anyone help me figure out what it is I'm doing wrong? I would be grateful eternally!

Thanks!