I recently switched from PC to Mac and absolutely love my MBP. I've had no problems at all, EXCEPT for that damn spinning color wheel occasionally showing up. It seems that every now and then when I'm in iTunes (usually when I'm typing in track names or scrolling through albums in Flow View), out of nowhere, that spinning color wheel will start and essentially freeze up my computer. I can't close from the menu bar, I can't get force quit to work, nothing. I end up having to push the power button to turn it off. Any ideas why this would be happening in iTunes?