First post on this very informative site... Anyway, i need to reinstall leopard because i have accidentally deleted the instrument library for garage band on my Macbook and i really need to use that application. So i was wondering how, and what is the best way, to back up my applications e.g. Photoshop CS4, iPhone SDK, iShowU HD and Microsoft office? For this i was thinking i could maybe use mobile me? i have an account. Also if anyone could tell me how to restore the files i have deleted so i do not have to completely reinstall leopard and iLife 08 that would be great. The message i get when i open Garageband is... Sorry for the long post and thank you to anyone who can help me!