Greetings.
I am puzzled about how to get iFly720 to read my music files that are on a USB.  I am experiencing an interesting problem:  The icons to transfer the files are not showing up unless I move my finger over the screen.  Having done that, the unit still says that the files are missing.  I have read the manual numerous times, but to no avail.  Not an emergency, but it would be nice to resolve this issue.  Thansk in advance.
Charlie