Peter,
I tried that with the same result. One theory I have is that I installed my OS on a new SSD and left the old HDD attached. When I attempt to disconnect the old HD as it is going bad I cannot boot into windows so I believe my bootmgr is on that drive.
I may need to find my windows 7 disc in order to specify the ssd as the primary OS drive. Just throwing that idea out there.
Anyway, let me know what I need to attach to continue troubleshooting.
Thanks!