BECAUSE I USE my iPod (Thanks again, Tim!) for dragging and dropping data over a slow USB connection, it occasionally hangs and then refuses to reconnect to my four-year-old Windows XP laptop. Sometimes the iPod hangs after it gets a little spike from AC-powered speakers. However, it returns to service once rebooted. In my case that means depressing and holding the centre button with one finger and the top menu button with another finger. Hold for six to ten seconds until the Apple logo appears. Nothing happens unless that Apple logo appears. Once rebooted, I recover drag-and-drop operation for my iPod and I can use the iPod to cue up songs and voices on our podcasts from Ireland. Your mileage may vary.
Podcasting.ie serves audio to offset earbud boredom.