everytime i connect my iphone to my computer, it automatically 'updates all my files' so i have to sit there for half an hour waiting for all 2000 songs to re-load onto my phone. Even when i want to add just one song to my phone it reloads everything!? how do you stop it from 'refreshing' my library. sometimes im on-the-go and want to chuck a new song on my phone before i leave, i used to be able to do that but now it suddenly has to reload every song. If i disconnect my phone during this process it, my music has not been 'updated' and i am left with all my songs but they are not at all playable?