Music distorted


Lately my Clip+ music slows down and distorts, but when I push any of the buttons in front it goes back to normal.  I have reformated the memory a loaded up the songs to no prevail.  I believe its a hardware issue with the buttons since it goes back to normal once I hit any button in the front.  When it goes back to normal its sometimes for a short time and sometimes for a long time. 

Any ideas?