I installed Windows via boot camp and activated smoothly. I then installed Parallels and had it boot off my boot camp partition. It had me activate again, which I did. All was running smooth until a few days ago. When I boot Parallels it says Windows is activated, but when I'm in boot camp it says it isn't. No matter how many times I try to reactivate the boot camp installation it says I need to "type a different product key for registration". Help?