I have two 3rd generation iPods (15 GB, 20 GB) and neither of them will update from my iTunes library (6.0.1) on my Power Mac. I have tried restoring them, I have tried different cables, nothing works. I plug one in, it goes through the usual routine of opening iTunes and saying "Updating iPod, Do Not Disconnect", but it uploads maybe three songs and then hangs forever. I then have to unplug the iPod and force quit iTunes. I plugged both of them into my iBook and they updated fine, but my iBook has a different iTunes library. Does anyone have any clue as to what might be the problem? I have already run the hardware test cd on my Power Mac, and the firewire ports seem to be ok. I also use an iSight on one of the firewire ports, and I have tried it in both ports to make sure one isn't bad. Any help or suggestions would be greatly appreciated. Thanks in advance!