It seems like every day I have to reboot the damned thing. It wasn't this unreliable for a short while after I got it. But while swapping between PC/Mac and maybe a firmware update later, it got more unreliable. But at that time what I wanted from a player changed and I ended up switching over to the iRiver and more recently the Cowon for my flash needs. For music, I still prefer these players but I like the podcast resume feature and the read or not indication of the Nano, I've started listening to more podcasts again so I've started using the Nano more as of late as a podcast machine but it's just driving me up the wall. I've tried restoring the firmware (on Win only - zero point in having an HFS formatted MP3 player) a couple of times to no avail. About every third or fourth time I dock it, it doesn't show up. The frequency varies but maybe once every two days depending on use I have to reboot it because it crashes when playing back a track (the menu sort of half slides into the now Playing display and freezes like that). I can't readily reproduce the errors so I guess I'm stuffed as far as support goes. This is not my normal experience of iPod reliability. What say you? Is anyone having similar problems? Is there a conclusive diagnostic test I can run?