Hangs at flashing underscore for 45 seconds before booting

[Tokiopop]

I've now properly installed Windows 7 to my MacBook, but now I'm getting this problem and can't find a fix.

Basically, I turn my MacBook on, select Windows, and it leaves me at a black screen with a flashing underscore for 45 seconds before it actually begins to do anything (making boot times unbarably slow).

This is seriously annoying me, but it doesn't seem to have a fix.

Edit: Oh, some details. Windows 7 Ultimate (64 bit), MacBook Pro 13" (2009), Snow Leopard installed, using rEFIt to multi-boot, bootcamp 3.0, and have never had this problem with any other version of Windows.

 

[ayeying]

Pirated? That's the only thing I can think of. My Legit doesn't flash for 45 seconds, it takes about 3 seconds.

 

[balamw]

Clean install? Upgrade over Vista? RC?

B

 

[yourashero]

have you installed bootcamp 3.0 on windows yet? I havent and my 27" imac does the same thing.