So I've had this Macbook Air for just over a year now and never had to use the SD Card slot. Today I decided to get a 32gb SD card as a backup drive and to my surprise the SD Card isn't being read. I checked the System information and it said this: "This computer doesn't contain any Apple Internal Memory Card Readers." My Macbook Air clearly has the slot beside the USB slot on the right side of the keyboard. Is a driver missing? How can I fix this?