No serial port available when connecting Leonardo and Mac 10.8

Ok so I have scoured the internet and these forum for information on how to run the Arduino Leonardo on my mac book pro retina with ox 10.8. I have reinstalled the FTPI drivers even though they have nothing to do with the Leonardo, used multiple usb hubs since mbpr uses usb 3.0 and the Arduino is temperamental to usb 3.0, I have done everything i can think of as far as identifying the usb connection on my computer and still am unable to load or even see the Leonardo. I do have an uno and when I plug that guy in it pops up right away and allows me to upload sketches. Any suggestions are greatly appreciated as for the Leonardo is begin used for a college senior design project and time is of the essence.