Recently I upgraded my primary computer to Windows 7. Somehow iTunes stopped playing nice with my iPod and had various problems syncing (not even going to go into that). So I decided to go to my secondary computer (which if it even matters, OS is Vista), and I had absolutely no problems transferring purchases. The only problem is, now I want to sync with the secondary computer only, and I wouldn't mind at all not even syncing with the Windows 7 one. I know I can erase all my data and re-sync, but I really would like to keep my apps, songs, videos, etc. So basically my question is: Can I switch syncing to another computer only without losing my iPod's data? Thanks a bunch.