Leonardo not communicating with mac

Hi all,

I've searched the forums but haven't found an answer yet. My brand new Leonardo isn't being recognized on my macbook pro. I tried it out on a Windows 7 computer and it worked just fine. When I open the IDE on my mac and select the Leonardo board, the only entries in the Serial Port menu are the default PDA-Sync and Bluetooth Modem. I've tried using coolterm to see if I can even see the port, but no luck. Any suggestions?

Thanks!

-Brett

Launch System Information and click on "USB". Do you see "Arduino Leonardo" or "ATmega 32u4" listed there? If so, what is the extended information say (paste it between code tags).