HELP.....I seem to have a problem when playing songs from my thumb drive. There are a couple hundred songs on the thumb drive, and they all play as expected. BUT, for some reason, each song plays twice. I have checked the thumb drive and each song is only listed once. I have deleted the entire thumb drive and rewritten the music to it. It still shows each song once, but still plays each song twice. If I use the toggle button to advance to the next song, I have to toggle twice, because only one toggle plays the song again. It is like the radio is possessed...... Ideas????