Hi Tex,
If you format or delete your Debian partition before you replace the GRUB bootloader, then you just won't be able to boot into Windows. You will have to replace the GRUB bootloader with the Vista bootloader in EasyBCD or else you will again have to install your Debian distro to fix this error or re-install Windows 7.
Guys: It is not clear whether he has Grub or the Windows bootloader installed to the MBR. He said he reinstalled Grub to the partition. He also said there was not a boot menu.
Based on the facts, I'd say he's probably using the Windows bootloader in the MBR, not Grub, but he can't get into Debian, using EasyBCD 1.7.2.
@Tex: What exactly have you tried? Why are you talking about removing the Windows 7 entry? What happens when you first turn on your computer? Do you go straight to Win 7 or straight to Debian without a boot menu?
Use the latest beta build of EasyBCD and add an entry under the Linux tab in the Add/Remove Entries section, selecting either Grub Legacy or Grub2 in the Type drop-down menu depending on which version of Grub Debian is using. If its Grub legacy, and you tried adding an entry that way (of course making sure to point it at the partition Linux is on under "Devices"), you can try adding the entry again, with the "Grub is not installed..." option selected this time, and it may work then.
Not knowing anything about Debian, that's the best support I can give at the moment on so little info...:brows:
Cheers.
Jake