Sansa Clip + 8GB FM Radio Stopped Working

I bought this MP3 player in October.  I treat my stuff very gently and now the FM radio doesn’t play.  I have tried different ear phones.  I tried plugging it into my car AUX plug…nothing.  I tried using the Record feature to record whatever was playing on the FM station and was able to play that segment back.  I can hear everything else except FM Radio.  ANy suggestions?

Thanks for that very helpful info!!  I was feeling  very irritated that my sansa clip had stopped working right in the middle of a song when I had just purchased it less than 6 months ago. I had tried holding down all the various buttons in my desperation, but apparently it was not long enough. Once I held down the on/off button for the time you suggested, my music came alive again. Yippee!!!  I thought  I was going  to have to purchase a new battery for it already, or even worse buy another 8 GB sansa clip because I really loved it.