iMac 27" i7 with OS X v 10.6.x when I create the bootcamp partition for windows 7 and I install from my original DVD of Windows 7. I format the partition during the install of windows 7 and on the first reboot after windows 7 first part of the install, the screen shows the Windows 7 logo and says continuing installation and then a black screen and then nothing. I have to hard power off the iMac and then it starts over says the thing about the system didn't shut down properly and gives me the option to start safe mode etc. and does the same thing each time. Any ideas on what to do to install windows 7 would be great, thanks.