So i just got windows 7 for my iMac. I followed all the steps (make sure everything is up to date and have the drivers on my external HD). After I install Windows 7 iI eject disk (as stated) and the computer is suppose to restart in windows mode, only it doesn't it restarts in OSX. And if i try and boot up in windows it just sits on a black screen. Any suggestions or fixes would be very helpful thanks.