I recently added an Airport Extreme and Airport Wireless with Airtunes to my mac pro. The next time I turned on my computer everything appears to have reverted to the default or factory settings. I can't find any of my music but other things such as my photos are still there. Anybody have any idea what might be going on? And where can I find my music? The iTunes folders appear to be empty. I also attempted to sync my ipod but it told me it would only sync to my account? I don't know what the heck is going on.