Mountain Lion/Aperture3/CF card v SD card
macbook pro with Mountain Lion will not load RAW Canon files on Compact Flash Card from card reader on USB into Aperture 3. (SD card loads fine with card reader and with the computer's slot) If I plug the camera into the USB it works fine. With my wife's MacBookPro (Lion) card reader works. Any ideas?
MacBook Pro, OS X Mountain Lion (10.8.1)