I don't think I can get any more frustrated over this... I have a brand new MBP. I have a 1tb external drive with 250gb's of music. I have it attached to my mac via USB. I CANNOT GET ITUNES TO CREATE A NEW LIBRARY ON THE EXTERNAL DRIVE. I CANNOT DRAG AND DROP OR ADD FILE/FOLDER. But get this, I hook it up to my old Dell and I can do whatever I want. I am friggin pissed that I spent all this money on Mac equip and can't get it going. You may have seen my other post where I posed my issue of: 1tb ethernet drive hooked to airport extreme. Above mentioned 1tb hooked up to back of it via usb. I am completely unable to copy, move, or add files using my mac. But guess what. my pc handles it easily and quickly. What am I missing?