This is just a cautionary note for anyone who's considering buying a Macbook Pro and wants to run BIAB for Windows via Boot Camp. XP is no longer supported. Only Windows 7. I just got my new MBP two days ago and found out the hard way. I did my research on whether XP was compatible, but not after the MBP was updated in February this year. Although Apple have put the information on their website, it's really hard to find even when actually looking for it. Even though I spoke to the sales rep from Apple Online specifically about using Boot Camp for BIAB, he didn't ask if I was using XP and I didn't think to question whether it'd still be compatible or not. Caught out! Currently waiting on Apple's reply about this, but wanted to share this experience in case it helps anyone else.