Help!

I'm having the black screen with blinking cursor whenever I try and boot up Windows 7 Ultimate 64-bit thru Bootcamp on my MacBook Pro. If i let it just sit there for maybe 2 minutes, it then goes to the Windows Boot Manager screen and allows me to click on Windows 7 and the it boots perfect. I've tried installing it twice, same thing. No problem booting OS X Snow Leo 10.6.3. Gott the right NVidia drivers installed, makes no difference. Have Paragon NTFS installed so I can get thru to NTFS partition from OS X. I badly need Windows too and don't wanna slow it down by running it in Parallels or VMWare Fusion. A little help?

Thanks a lot!

MacBook Pro 15" 4,1
500GB HDD
6GB DDR2 667
NVidia GeForce 8600M GT
Core 2 Duo 2.5 GHz
Windows 7 Ultimate 64-bit + SL 10.6.3

Fixed! Think the problem was that it was an OEM version of Win 7, which Bootcamp advise against using... they advise to use retail only. Fixed like this:

1. Put the Windows 7 installation disc in the disc drive, and then start your computer.
2. Hold down Option key till all available disks are displayed and select DVD. Press a key when you are prompted.
3. Select a language, a time, a currency, a keyboard or an input method, and then 4. click Next.
5. Click Repair your computer.
6. Click the operating system that you want to repair, and then click Next.
7.In the System Recovery Options dialog box, click Command Prompt.

Type (these commands are safe)
Code: Bootrec.exe /FixMbr
Code: Bootrec.exe /FixBoot
Code: Bootrec.exe /RebuildBcd
*Press ENTER after each command.*
*Restart your computer.*

Done. Rockin'