Just purchased a retail version of Vista Home Premium 32-bit and want to install it on my Macbook (2.2 ghz, Leopard, Santa Rosa chipset), which I purchased in late December. Since the Macbook architecture is 64-bit, but as I understand it, Bootcamp was developed in 32-bit, I shouldn't have any problems installing this version into my existing Macbook, right? If so, I can always keep the CD as a backup to my other computers (HP desktop and two Toshiba laptops), but I would really like to install this on my macbook. Any advice would be much appreciated. Edited to add: I think I misspoke...Thought I read Parallels was developed in 32-bit only but I might be mistaken and it might be Bootcamp which is 32-bit only. Sorry I seem so lost.