Hi Gregory,
Thanks for giving it a spin. I think I know the main problem. We are using the HTML 5 labelling mechanism:
<label><input type=checkbox id=showA> Show As</label>
<label><input type=checkbox id=showB> Show Bs</label>
versus the standard:
<input type="checkbox" id="foo" />
<label for="foo">Show As</label>
So, either IE does not map the accessibility API properly or JAWS simply does not handle this. I will send the example off to Freedom Scientific. Freedom Scientific does not yet support HTML 5 in their products.
Rich
Rich Schwerdtfeger
CTO Accessibility Software Group