Can't transfer iTunes music to iPhone
I've had my iPhone for about a year, and my Macbook not as long. When I plug my phone into my PC, which is the computer I used when I got my iPhone, it allows me to transfer music over. But, when I plug my phone into my Macbook I can't transfer music over, but it shows up as my iPhone in iTunes. When I try to drag music over it doesn't let me drop it. Is that because I first used the phone with my pc? How can I get it to work with my macbook instead?