I just set up a USB external HDD as an AirPort Disk through my AirPort Extreme. It works fine except for one thing: the Finder sidebar icon. Instead of a hard drive with some signal bars on it the icon is just a dark box. I know this isn't a major issue, but it's somewhat annoying to have a bad icon. Check out my attached image to see what it looks like. How can I change the bad icon to the AirPort Disk's proper icon (one that isn't a solid block)?