After just buying a $2800 laptop, I am amazed to find that the USB does not fuction properly on the 15" and 17" powerbooks. Apparently this has been a problem since FW800 was added. If you search apple forums you will find thread after thread about this problem that apple is apparently ignoring. I talked to apple and they say I'm basically screwed. I'm so angry I may sell my machine on ebay and go back to PC. We should do something about this. Start a petition for a recall maybe.