I needed to swap out my hard-drive, so I dmg'd the Boot Camp partition in order to back it up, but I'm having trouble getting it working again. Whenever I restore it, it doesn't boot. It either doesn't appear in the Option-button boot menu at all, or when selected gets stuck on the underscore prior to the Windows logo screen. When I reinstall Windows afresh, all is working fine. I can only assume the .dmg contains outdated boot information, which I need to fix. I've tried fdisk to make the drive bootable, I've tried fixmbr, fixboot and rebuildbcd from the Windows 7 install CD, and a couple of other things, but now I'm out of ideas. Any thoughts?