hey guys, i've noticed when i plug my ipod via firewire on the front of my mac pro (early 2008), it doesn't charge it. i've tested this on two different ipods, a 3g ipod and an ipod nano. my mac will see the ipod is connected, and i can transfer files from it and itunes will recognize it, but it won't charge the ipod. i can't even turn my ipod off when it's connected. is there something wrong with my firewire port? i have an older generation mac pro at work, and the ipod charges just fine when plugged into the front firewire port. any ideas??? thanks!