Had my Sansa Fuze for almost a year - now only getting an hour's worth of playback?

Did you try charging it on another computer?  My old laptop charged it before I even used it (as per the instructions) but took forever.  Then charged it once more.  After that it didn’t charge it at all.  Bought a wall charger for home use (until I got my new netbook which charges it fine).  Did you try a wall charger or car charger?