After successfully installing Windows 7 using BootCamp Assistant on my 17" MBP 8,3, I wanted to install it on my MacPro 5,1. After spending literally hours on the phone troubleshooting with AppleCare, the last rep told me it was probably the OEM disc. I am still confused why it worked fine with my 17" MBP but has problems with my tower. The issue I had with BootCamp was, after BootCamp Assistant would partition the drive, it would reboot and go to a black screen with a flashing cursor. The *only* thing I haven't tried is the boot drive...I have a OWC SSD as my boot drive for the tower, while the 17" MBP still has the factory drive. Just curious if anyone out there has experience with OEM discs and 'getting around it'.