I'm having a bit of a problem guys. I always have something plugged into my USB ports on my iBook when it's at my desk, which is usually my USB hub. Everytime I plug my iPod Shuffle into the back USB port, the one closer to the FireWire port, my USB closet to the monitor port goes wonky. The external mouse slows down to where it's not smooth anymore and access to my external hard drive is gone. It's like when I plug in my iPod Shuffle in, it kills the back USB, but makes the front one go really slow. I have zapped the PRAM, but not the Power Management. I don't think that would do it. Is this a case for AppleCare?