Hello. I'm a proud owner of a MacBook and an iMac, however, I'm going off to University next month and I decided I needed to install Windows 7 onto my iMac incase I need software on it for whatever reason. Now, I turned it on this morning and it came up with a black screen, saying 'No bootable device -- insert boot disk and press any key' I have installed Lion on both machines before, and I can't make a USB version of Lion to do something. Is there ANYTHING I can do? Lion is installed on the HD, and Windows is installed via VMWare Fusion. Something has utterly screwed up and I'm stressing out like mad, can anybody help me?