I just bought a 6th gen 80gb black classic ipod. I originally booted it up on a windows xp pc due to being at work and being too impatient to wait until i got home to my macbook. I know its bad! But i've now put all my music on the macbook itunes and its the only comp i use for my new ipod now. the problem i have is that the format for the Ipod is windows, but i want it to be mac. Can this be change? Will affect anything ie: Music, order of music. Cheers for all your help guys.