trouble bcd file with bootcamp

[allj]

Hi
I'm having trouble with vista 64 loading on the bootcamp partition. The screen turns black after logon for way too long. I want to use easybcd from neosmart to rescue the boot sector since I think this is where the problem lies. Does anyone know if doing this will interfer with the normal loading of holding the option key down or booting directly into osx. I'm desperate for an answer. Any help is greatly appreciated. Thanks Alan