Fit her with a good tab or glove, put a flipper rest on the bow and have her try shooting the bow with her fingers. There is a lot more feeling of being in control of the bow when the fingers are actually ON THE STRING. I'd bet she's experiencing a bit of fear, or intimidation at least, and shooting fingers just might give her more confidence. It might not work, but there's very little expense in trying it. A heckuva lot cheaper than trying different releases at $50-100 a pop.

Believe it or not, folks, not exactly everybody should be shooting a release. I hate seeing newbies forced into a single shooting style when there are SO MANY different options that might probably work better for them.