I have a Macbook Pro from June 2009. I have come across that Installing Microsoft Windows XP (32 bit) through Boot Camp Assistant it won't let you choose whether to use your Nvidia Geforce 9400m or Nvidia 9600m which is a BIG disappointment.. especially if you have the need to be in Windows and are mobile. I have phoned the Apple Tech Support in Sweden and they simply say "I don't know about WindowsXP and i can't give support on it". Honestly this is not a Windows issue this is something that has to do with Apple and Bootcamp. If you have a Macbook Pro June 2009 and only have the 9400m Video card then WindowsXP will recognize this but will not if you have both. I question the competence of the Apple Support team after speaking to them over the phone. After i got an email wanting me to evaluate their service, laughs. I am personally an old Microsoft and WindowsXP user and i still use it for my desktop due games and what not although that being said i love being on my Macbook Pro within OS X Leopard... but shouldn't they be able to fix this issue or am i the only one having this complaint?