IPod Nano 3rd generation center button doesn't work?

My iPod nano used to work fine and now I have to press the center button repeatedly to get it to work at all. I tried resetting it in all ways possible and now it is getting really annoying. I need a solution because I do not particularly want to eBay this iPod. Please answer ASAP. I need a hardware answer more than a software answer but anything will do if it fixes my problem.