I have 2 computers, one with over 2 gigs of music, and the other one with videos and movies. I have all my music on the iTouch, but now when i connect it to my main computer (with the videos and junk) it says I have to erase all my music and everything to be able to sync it with this computer. I think that if I connect it as a guest, I will be able to do this correct? Each time I connect my iTouch in this computer, it starts the "Welcome to your iPod" or whatever. Can anyone help me out?