Windows 7 RTM disappears from boot menu

Windows 7 RTM disappears from boot menu I tried to install - actually, upgrade from 7100 RC - the Windows 7 RTM. Everything went fine, installation completed, and logon screen appeared - I entered my logon info (domain credentials)... and when I pressed Enter it said:
Asked by: Guest \| Views: 253

Total answers/comments: 1

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Guest [Entry]

"OK, I've found the answer on one of the forums (I've found it while in XP and now I'm in W7 so don't remember the link): got EasyBCD, reinstalled Vista bootloader, and I'm in Windows 7 now.

Don't know what happened, though."