Sansa Clip+ Will not play songs

The right arrow displays; but the progress bar does not move (the song does not play).  This happens with my music selections and songs from the slot radio card.  The FM radio does play.

I’d really like to resolve my problem–is there more information I can provide?

That is indeed a puzzler; not playing from either your own loaded songs or the SlotRadio card. I think this calls for a conversation with STS (SanDisk Tech Support); it may be hardware-related and therefore covered under the warranty.