Hi, i have been using my new mac pro for just over a month now with snow leopard and 32-bit vista installed successfully. I have decided i would be stupid not to take advantage of my computers hardware and get the 64-bit edition of Vista, especially because of the rendering and 3D software i use. My hard drive has already been partitioned using bootcamp so i could install the 32-bit version of vista, but when i try to use the same method again for the 64-bit edition it tells me i cant for this reason. I would like to have Snow leopard, 32-bit Vista and 64-bit Vista installed on the same hard drive at once for various reasons. I am aware that disk utility can do the same thing manually but i do not want to use the 'trial and error' method i usually use because of the work on my hard drive Could some one please explain how i can achieve this???