I'll sum up the lead-in story as best I can. I have a 2010 MacBook Pro 13". Just got an new iPod Classic a couple weeks back. I discovered that when playing the iQuiz game, I had a few lock-ups (freezing). Then a handful of times, it locked up when connecting it to the MacBook for charging or syncing. It didn't lock up EVERY time. But about 1 out of every 4 syncs on average. I naturally thought something was wrong with the Classic, and brought it into the Apple store when it was locked up, and they gave me a new one. But now this one is doing the same thing. Occasional lock-ups when connecting to the MacBook Pro. Doesn't matter which USB port. And doesn't seem to matter if the computer has been on, or if it's a fresh boot. What could be going on here? I doubt highly that both Classics I've gotten have the same exact issue with occasional lock-ups when connected to the computer. My MBP otherwise has given me no problems. And no problems with other USB devices, ever. Any ideas?