My 4th gen IPod (photo) has apparently given up. It stopped playing mid song and when I hit menu it shows no content. Now it just shows a dark screen unless I hold down the center button and menu to boot it. Then I get the expected apple icon, which alternates bright and dim and, after a few minutes goes dark again. I've tried the "slap" and, if I plug it in it stays bright. Any hints or is it time to give up?