On Thursday, May 16, 2013 4:29:39 PM UTC-4, Dan Daly wrote:
I did RTFM. If it's accurate, you're wrong; I have tried
what you suggest and it does not work - the IGC files do
not appear on my stick unless I cycle the power.

Put the cursor on the "download IGC" choice and push the button.
Works great, Kirk is absolutely right.
This *should* be in the Butterfly documentation;
no idea if that has been updated.