Hi, I have the Lumia 920. I'm on a 10.8.2 Macbook Air. I'm running the new Windows Phone 3.0 sync tool from the app store. The phone did sync the first time I tried it. However, I wanted to sync again to add movies and playlists. The phone is recognized, it shows my how much free storage I have, but when I press Sync nothing happens. It also won't list what files are currently on the device. Also, if I try and drag files onto the device it says that it is copying, but it doesn't actually copy