So I'm trying to install the new release preview of Windows 8 on my iMac. - I am trying to install the iso provided on the microsoft website - I open up bootcamp (version4.0.3) and I notice that there is no "create windows 7 disk via usb" option like there normally is, it just isn't there (it is not grayed out). That is where I'm stuck, that option is not there so I can't create a disk on my flash drive/external hard drive using that iso. I don't know why that option isn't there, and I want to know why it isn't there and how I can make a windows 8 install CD with a flash drive/external HD. Any help is greatly appreciated, thanks.