Ok I messed up some stuff with my iTunes twice already (got my MBP 4 days ago) and had to restore from Time Machine twice. I did 2 COMPLETE restore's where you insert SL and redo everything to the day when it wasn't messed up. I didn't know I could just restore the iTunes folder so I've done my complete MBP twice. I ended up getting everything to work fine. But now I'm wondering, did I or could I mess up my MBP by completely restoring the entire computer a certain amount of times?