Hey guys, I recently purchased a brand spankin' new 4th generation iPod Shuffle. Silver and shiny. I brought it home, plugged it into my PC, and iTunes completely froze. Left it there for a good 20 minutes, didn't get anywhere, so I used the Task Manager (running Windows 7) to force quit the process. It wouldn't quit, no matter what, until I unplugged the iPod. The second I unplugged it, everything came back to life. This computer is also a *cough* hackintosh *cough*, so I tried to use it on the Mac side, same problem. It's recognized and shows up on the desktop, but when I open iTunes (or even Disk Utility), it completely freezes the application. Spinning beachball, unable to force quit, until I unplug the iPod, at which point I get a sudden and intense stream of error messages. But at least iTunes starts working again! I tried plugging it into my Macbook, and strange enough, everything works fine. Immediately shows up in iTunes, I can sync a few songs, change settings, etc. Unplugged from my Macbook, back into the PC, and it freezes iTunes again, regardless of whether it's running 10.6.4 or Windows 7. Both sides are running the latest version of iTunes (10.0.1?) Any clues? Works on my Macbook, not on my PC? Shouldn't matter that it's a hackintosh, since it doesn't work under Windows 7 either. I'm completely stumped! Edit: Popped open the Console to find an interesting smattering of error messages as well: 9/25/10 11:09:47 AM kernel disk3: I/O error. 9/25/10 11:06:58 AM kernel USBF: 727.557 AppleUSBEHCI[0x56fa800]::Found a transaction past the completion deadline on bus 0xfd, timing out! (Addr: 2, EP: 2) 9/25/10 11:07:29 AM kernel USBF: 758.557 AppleUSBEHCI[0x56fa800]::Found a transaction past the completion deadline on bus 0xfd, timing out! (Addr: 2, EP: 2) 9/25/10 11:08:00 AM kernel USBF: 789.557 AppleUSBEHCI[0x56fa800]::Found a transaction past the completion deadline on bus 0xfd, timing out! (Addr: 2, EP: 2) Solved: Was plugging it in to one of the USB ports in the front of the case. Unplugged from the front and moved to the back, recognized, unfrozen, syncing my music. I'm thinking it's either a crappy connection or bad hardware. I'll be buying a 4-port USB switch later today, and nixing the front ports.