So I've got a ton of USB devices (a 1TB external HD, an mp3 player USB key, etc.) and they all work fine... but then, I just recently got one that I can't get to work. It's a watch with USB storage on it.

When I plug it in, nothing happens. When I tail /var/log/messages, nothing pops up (usually, there's a message about such and such device showing up). Nothing. It works fine on a Windows laptop, so I know the device is not busted. How does one troubleshoot that? Normally, when things don't work and are troubleshootable, it at least notices that something is there that it fails to mount...