Hold switch problems

I have 60gig model that I purchased in October. I noticed within the past week and a half that I at times I have to toggle the hold switch multiple times for it to actually function properly (i.e.- setting the switch to the "Hold" position does nothing, I'll have to switch it back and forth for it to put the iPod into Hold mode).
Is there a fix for this outside of sending my iPod in for repair? If I need to send it in for repair does it matter that I have custom engraving on the back?