Hey guys, I need to install Windows 7 for my job (shudder). I've got an ISO and a USB drive, and I've got the Boot Camp assistant open, but the option to "Create a Windows 7 install disk" is greyed out. I had already created a Windows 7 install USB key, through the utility Microsoft provides, so I figured I could go ahead without it. But when I got to the point of partitioning, the utility wouldn't let me continue, because it couldn't detect a Windows 7 install disk. I'm on a late 2010 MacBook Air 128GB. All of the alternative methods I've seen seem to involve rEFIt, but more importantly they require using the Boot Camp assistant to partition the drive. But the BCA refuses to partition without a Windows 7 disk. What do I do here?