Mine required manually switching from one mode to another (which ended up being about a 3-5 minute reboot, as it had to then detect all of the music on the devi

Mine required manually switching from one mode to another (which ended up being about a 3-5 minute reboot, as it had to then detect all of the music on the device) when I wanted to add new music. I'd plug it into my mac and it would sometimes show up and sometimes not. There were times when I'd be attaching and detaching it over and over again for about 15 minutes. I change my music daily (I have a long commute), so this became quite onerous and hated.