I have an iPod Touch 2nd Gen running OS 3.1.3 (NOT jailbroken). With 9.0.3, the device syncs fine. When I install 9.1, the device no longer syncs. I know it's a 9.1 problem, because I found and reinstalled 9.0.3 off the internet and I can sync again. Anyone have any ideas?

By the way, I did all the normal like reboot the machine, reboot the device, etc.