This actually relates to an issue I'm having...I just purchased a 2G Nano from a friend (He just bought a 3G and doesn't need his 2G anymore) who has it formatted for PC. I connect it to my Mac, and it gives me a "Transfer Music?" question. If I tell it yes, it says it can't transfer the music because my computer won't authorize it, if I say no, it tells me it's going to clear the iPod and resync it (which is what I WANT it to do), and then proceeds to freeze up. I've tried several times, and all iTunes ever does is cease responding. I'm guessing it's due to the fact that I have the most recent iTunes update. Any ideas?