Hi, I had a different problem, but it also appeared when I installed the latest Rockbox with USB support. As a result, my Sansa Clip+ bricked. I think that possbily the Rockbox damaged some hidden partition or something, because the player worked fine for 14 months and then bricked. After several unsuccessfull attempts at recovering it, I decided to buy a new 2GB player, but this time I won't install Rockbox on it, or will install an ealier, more stable version with less features. Possibly, Rockbox is not as 'free' as it seems to be. Though I don't know for sure, because there always is a possibility of hardware failure.