Hello, thank you guys in advance for all of your help. I have been following this tutorial to create a bootable USB drive for ubuntu(http://www.ubuntu.com/download/help/...ick-on-mac-osx). After I install the .img onto the USB drive I unplug it and my computer will not recognize anything on the drive. It seems as though the disk had been set back to default every time I plug it in. This is the message I get every time I plug it in http://imgur.com/SYyhU. I am not very good at working with this so it could be a very simple error. Thanks for you time!