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.