I originally set up my iPad at work on a computer there, so when I plugged it into my PC tonight for the first time it asked me to transfer my purchases, which okay I did, I also did a manual back up. But here is my questions, I want to sync some music, but every time I go to do so, it tells me in order to do so, it has to "sync and erase" which is no big deal because I don't have much on it, but here is my question. Will I loose all my app data, game progress, and pictures, or will it only erase the music (which currently is nothing). If it is going to erase all my data, then I don't want to do this. My manual backup should have all that stuff right? Confused?? Let me know and I will try to clear it up.